Top Messaging Security companies 2026

We rank messaging security companies using a variety of factors, including breadth of protection, remediation speed, accuracy, GenAI defense, deepfake protection, and autonomous risk management, to get you the perfect results for your company's needs.

36 companies ranked | Jul 21, 2026

Which messaging security vendors should buyers compare first?

Enterprise buyers should compare Abnormal, Fortinet, and Cisco and other ranked messaging security vendors by fit, capability evidence, implementation risk, and procurement readiness. Palomarr ranks suppliers to help buyers move from a broad market scan to a practical shortlist.

To select the best messaging security solution, prioritize vendors offering advanced AI-driven threat detection, multi-channel protection, and seamless integration. Consider your organization's size, existing infrastructure, and specific compliance needs to find a provider that offers robust defense against evolving cyber threats.

Abnormal and Fortinet stand out for their advanced AI-driven threat detection capabilities, crucial for combating sophisticated email and application-based attacks. Before shortlisting, verify their specific integration requirements and the proven effectiveness of their AI-driven features against emerging threats.
Cisco Fortra Coro and Open Systems offer comprehensive security platforms that integrate messaging protection across various communication channels, ideal for a unified defense strategy. It is important to verify their specific integration capabilities with your current IT environment and their support for relevant compliance standards.
Theta Lake Retarus Intermedia and TrustWave are strong choices for organizations prioritizing digital communications governance and compliance, offering robust archiving and security features. Before making a decision, verify their specific compliance capabilities and how well they integrate with your existing communication platforms.

How companies earn their ranking

Capability in messaging security is driven by the breadth of channels protected, the speed of threat remediation, and the accuracy in detecting zero-day malware and Business Email Compromise (BEC).

Innovation is reflected in the adoption of GenAI to defend against AI-generated phishing, the ability to protect against deepfakes, and the implementation of autonomous risk management that adapts security measures based on individual user risk profiles.Top-ranked messaging security companies typically exhibit an API-first mentality, prioritizing cloud-native integration, and context-aware intelligence, focusing on understanding conversations rather than just scanning files.

Vendors can improve their ranking by expanding their multi-channel orchestration, enhancing autonomous behavioral intelligence, and focusing on human resilience metrics, turning employees into active sensors within the security ecosystem.

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Rankings

Abnormal

Behavioral AI for threat detection

Best Overall Best Value

9.8

Fortinet

AI-driven threat intelligence for protection

Best for Enterprise

9.7

Cisco

Protection against phishing attacks

9.6

Fortra

Integrated email protection for compliance

9.6

Theta Lake

Governance for secure digital communications

9.5

Retarus

Modular email security for scalable solutions

9.4

Coro

Easy-to-manage dashboard simplifies security

9.3

Intermedia

Scalable security with 24/7 support

9.3

TrustWave

Tailored services for regulatory compliance

9.2

Open Systems

Proactive monitoring with measurable ROI

9.1

How to use these rankings

Fit for messaging security

We rank Messaging Security around advanced threat detection and remediation, multi-channel protection and integration, and the constraints that change fit across a real security program.

Threat detection remediation evidence

Supplier claims are checked against current proof, including advanced threat detection and remediation. Examples like Abnormal and Fortinet count only when the evidence matches the buyer need.

Multi-channel protection tradeoffs

We flag where multi-channel protection and integration, behavioral AI and autonomous risk management, budget, timing, or risk tolerance would change the shortlist.

Controls to verify

Before outreach, verify integrations, contract terms, implementation path, and support model for Messaging Security.

Messaging Security: Protecting Your Enterprise from Evolving Threats

Messaging security has evolved from simple spam filtering to a critical defense against sophisticated cyber threats like phishing, Business Email Compromise (BEC), and deepfakes. With nearly 95% of all human-associated security breaches originating from digital communication channels, selecting the right solution is paramount. Modern platforms leverage AI and behavioral analytics to detect anomalies, protect against AI-generated attacks, and offer autonomous risk management. This guide helps you navigate the complexities of messaging security, focusing on solutions that provide comprehensive protection across email, instant messaging, and collaboration platforms. We evaluate top providers based on their capability to remediate threats, accuracy in detection, and innovative approaches to safeguarding your digital communications. Understanding these factors will enable you to make an informed decision and strengthen your organization's cyber resilience.

What matters in this category

Use these signals to pressure test the ranking against your requirements, constraints, risk, and buying process.

Advanced threat detection and remediation

The ability to quickly and accurately identify and neutralize sophisticated threats like phishing, ransomware, and BEC is crucial. Modern attacks often bypass traditional defenses, making advanced detection methods essential to prevent financial losses and data breaches.

Evaluate how vendors use AI, machine learning, and behavioral analytics to detect zero-day threats and impersonation attempts. Look for capabilities like post-delivery remediation and real-time threat intelligence. Verify the speed and effectiveness of their response mechanisms.

Multi-channel protection and integration

Enterprises use a variety of communication platforms beyond email, including Slack, Microsoft Teams, and Zoom. A comprehensive messaging security solution must protect all these channels to prevent multi-channel attack campaigns and ensure consistent security policies.

Assess the breadth of communication channels a vendor supports and how seamlessly their solution integrates with your existing IT infrastructure and cloud productivity suites. Prioritize API-first, cloud-native solutions that offer unified visibility and control across all messaging platforms.

Behavioral AI and autonomous risk management

Threat actors are increasingly using generative AI to create highly convincing phishing lures. Solutions that can establish behavioral baselines for users and adapt security policies in real-time are vital to defend against these advanced, AI-driven attacks.

Investigate vendors' use of Natural Language Processing (NLP) and Natural Language Understanding (NLU) to identify subtle anomalies in communication patterns. Look for features that provide autonomous risk management, adjusting security measures based on individual user risk profiles and proactively updating training modules.

Implementation and support

The ease of deployment and ongoing support can significantly impact the total cost of ownership and the effectiveness of your security posture. Complex implementations can lead to delays and potential vulnerabilities, while poor support can hinder incident response.

Consider the implementation difficulty and the level of support offered. Solutions with easy deployment, especially those utilizing API integrations, can reduce operational overhead. Verify the vendor's support structure, including response times and access to expert assistance, to ensure continuous protection and quick resolution of issues.

Meet the leaders

Discover what makes each company unique. Use filters to narrow by your needs, or Find your perfect match to get personalized rankings tailored to your exact requirements.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

This can involve features like real-time chat with colleagues, easy access to shared knowledge bases, and even the ability to consult with supervisors during a call. By fostering teamwork, these contact centers aim to improve agent efficiency, resolve customer issues faster, and ultimately provide a better overall customer experience.

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Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Abnormal Security specializes in AI-driven email protection, making it ideal for enterprises needing advanced threat detection and response capabilities.

Pricing posture

Premium pricing tier with a mid-range cost structure.

Implementation/integration fit

Complex implementation, best suited for mid-market and enterprise customers.

What to verify

Verify integration with existing email systems and the effectiveness of AI-driven features.

Abnormal Security is a leading cybersecurity firm specializing in protecting organizations from email and application-based attacks. Leveraging behavioral AI, the company effectively models normal user behavior to identify anomalies indicative of potential cyber threats. With a client base exceeding 3,000, including numerous Fortune 500 companies, Abnormal Security is recognized as a leader in the Gartner Magic Quadrant for Email Security.The core offering of Abnormal Security is its AI-native platform, which encompasses several key areas such as Cloud Email Security, AI Security Agents, and SaaS Security. The Cloud Email Security solution protects against various threats, including phishing and business email compromise, while managing security for platforms like Microsoft 365. AI Security Agents include features like the AI Security Mailbox for managing reported emails, an AI Phishing Coach for user training, and an AI Data Analyst that allows for natural language querying of security reports. Additionally, the SaaS Security extension safeguards applications such as Slack and Zoom, detecting and mitigating malicious content across these platforms. Abnormal Security's value proposition lies in its advanced technology and robust integration capabilities. The platform operates on a pure API-based architecture, facilitating seamless connections to cloud email and SaaS platforms without disrupting mail flow. This architecture enhances reliability and concurrency, while the Abnormal Behavior Engine establishes behavior baselines for users and applications to detect deviations signaling potential attacks. The company also offers customized pricing based on organizational needs, ensuring that clients receive tailored solutions that fit their specific security requirements. With a strong commitment to customer support and compliance, Abnormal Security maintains a Trust Center that provides resources on security and privacy practices, reinforcing its position as a trusted partner in cybersecurity.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

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Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Fortinet's messaging security leverages AI-driven threat intelligence and advanced filtering, making it ideal for organizations needing robust protection against evolving threats.

Pricing posture

Premium pricing tier with a mid-range cost structure.

Implementation/integration fit

Moderate implementation difficulty, suitable for a wide range of customers including large enterprises.

What to verify

Verify specific integration requirements and security compliance capabilities.

Fortinet, founded in 2000, is a global leader in cybersecurity, offering a comprehensive portfolio of over 50 enterprise-grade products designed to protect networks, users, and data across hybrid IT environments. With a commitment to innovation and security, Fortinet secures over 890,000 organizations worldwide, leveraging advanced technologies such as AI-driven security and integrated networking solutions.The company's flagship product, the FortiGate Next-Generation Firewall, is the most deployed firewall globally, providing features like deep packet inspection, intrusion prevention systems, and secure SD-WAN capabilities. Fortinet's offerings also include advanced threat protection, endpoint detection and response, secure access service edge (SASE) solutions, and operational technology security, among others. This diverse product line is supported by FortiOS, a unified operating system that ensures consistent policy management across all Fortinet devices, and the Security Fabric, which integrates security across on-premises, cloud, and hybrid environments to simplify operations and enhance visibility. Fortinet's value proposition lies in its ability to transform traditional security measures into proactive defenses through automation and real-time threat intelligence, powered by FortiGuard Labs. The company focuses on providing seamless integration across its ecosystem, supported by over 3,000 unique integrations with technology partners. This collaborative approach not only enhances security posture but also addresses the challenges posed by the rapidly evolving cyber landscape, making Fortinet a trusted choice for enterprises seeking robust and adaptable cybersecurity solutions.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

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Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Cisco excels in messaging security with its comprehensive security solutions, including advanced threat detection and integration across various communication platforms.

Pricing posture

Premium pricing tier with a mid-range cost structure.

Implementation/integration fit

Easy implementation for large enterprises, suitable for SMBs to enterprises.

What to verify

Verify integration capabilities with existing systems and support for compliance standards.

Cisco is a global leader in IT and networking solutions, renowned for its robust portfolio that empowers organizations to build secure, intelligent networks. Their innovative technologies are designed to tackle modern challenges like cybersecurity threats, network scalability, and cloud computing, delivering enterprise-grade solutions tailored to meet the needs of businesses of all sizes. Through their comprehensive services, Cisco enables companies to achieve digital transformation, improve operational efficiency, and ensure reliability while optimizing their IT environments. Focused on security and seamless connectivity, Cisco integrates advanced technologies such as artificial intelligence and zero-trust architecture into its networking solutions. Their offerings range from cloud-managed networking through Cisco Meraki to sophisticated cybersecurity measures through their Security Cloud, ensuring organizations can navigate the complexities of today’s digital landscape confidently. Additionally, Cisco's commitment to sustainability is reflected in its initiatives aimed at creating smart, eco-friendly workspaces and reducing overall carbon footprints across industries. Cisco's dedication to customer support and experience is demonstrated through its Customer Experience (CX) services, where expert guidance and insights are provided to optimize technology investments and accelerate digital transformation. By leveraging its vast partner ecosystem, customer feedback, and innovative products, Cisco continues to lead in technology innovation, helping organizations build resilient, scalable infrastructures to support their evolving business needs and positioning them securely for the future.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

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Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Fortra offers a comprehensive cybersecurity platform with advanced email protection, suitable for medium to large enterprises looking for an integrated approach.

Pricing posture

Moderate pricing tier with a mid-range cost structure.

Implementation/integration fit

Moderate implementation difficulty, designed for medium to large enterprises.

What to verify

Verify the scope of email protection features and integration with existing security tools.

Fortra, formerly known as HelpSystems, is a cybersecurity company based in Eden Prairie, Minnesota, specializing in advanced offensive and defensive security solutions that address the entire cyberattack kill chain. With a comprehensive range of integrated and scalable products, Fortra aims to provide organizations with the tools necessary to enhance their cybersecurity posture and respond effectively to threats.Fortra's offerings include a cloud-native, multivector cyber defense platform that simplifies security operations through a unified interface and single login. Their product portfolio encompasses a variety of categories such as data analytics, endpoint protection, advanced threat protection, and security incident response. Key solutions include Cloud Email Protection for comprehensive email security, Vulnerability Management for proactive risk assessment, and Extended Detection and Response for visibility across all layers of an environment. Additionally, Fortra emphasizes human risk management through training programs that educate employees on recognizing social engineering attacks, thereby enhancing overall organizational security. The company's value proposition lies in its ability to integrate essential security technologies into a cohesive platform, reducing the operational burdens on security teams and allowing for quick threat detection and remediation through automation. Fortra also focuses on delivering real-time insights into security posture and providing consolidated reporting and analytics. With a commitment to breaking the attack chain, Fortra tracks vulnerabilities and threats on a massive scale, blocking millions of global threats monthly, and leveraging AI to stay ahead of emerging threats, ultimately enabling organizations to manage cybersecurity more effectively and efficiently.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

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Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Theta Lake provides a governance and archiving platform for digital communications, ideal for organizations needing compliance and security in messaging.

Pricing posture

Moderate pricing tier with a mid-range cost structure.

Implementation/integration fit

Moderate implementation difficulty, suitable for small to large enterprises.

What to verify

Verify compliance capabilities and integration with existing communication platforms.

Theta Lake is a leading provider of Digital Communications Governance and Archiving solutions that enhance security and compliance across various collaboration platforms. The company focuses on automating risk detection and compliance monitoring for organizations utilizing unified communications, ensuring adherence to strict regulatory standards in an evolving digital landscape.Theta Lake's platform features a robust Digital Communications Governance and Archiving (DCGA) system that integrates seamlessly with major collaboration tools such as Microsoft Teams, Zoom, Cisco Webex, and Slack. Its core capabilities include Unified Capture, which collects and validates communication across multiple channels, and Unified Search and Archiving, which provides comprehensive eDiscovery functionalities. The platform leverages patented machine learning and artificial intelligence technologies to proactively identify compliance risks and automate the review process, enhancing productivity and compliance management for organizations. The company supports a wide range of industries, particularly financial services, where regulatory compliance is of utmost importance. Theta Lake is SEC Rule 17a4 compliant and holds certifications such as SOC 2 Type II and ISO 27001, assuring clients of its commitment to data security and privacy. Additionally, the platform offers extensive API-based integrations, allowing for flexible deployment either as a standalone archive or as an extension to existing systems. With support for multiple languages and a subscription-based pricing model tailored to organizations of varying sizes, Theta Lake positions itself as a comprehensive solution for businesses looking to maximize their investments in unified communications while ensuring compliance and security.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

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Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Retarus delivers comprehensive email security solutions with advanced threat detection, making it suitable for enterprises focused on reliable messaging security.

Pricing posture

Moderate pricing tier with a mid-range cost structure.

Implementation/integration fit

Moderate implementation difficulty, designed for enterprise customers.

What to verify

Verify the effectiveness of threat detection features and integration with existing email systems.

Retarus is a leading provider of cloud-based communication solutions, specializing in secure email, cloud fax, SMS, and electronic data interchange (EDI). Established in 1992 and headquartered in Munich, Germany, the company caters to enterprises worldwide, including over 41% of the S&P Global 100 companies. Retarus’ commitment to security and compliance is substantiated through its ISO 27001 certification and adherence to regulations such as GDPR and HIPAA. With a robust infrastructure comprising seven data centers, Retarus ensures high availability and performance, processing over 10 million emails per hour, making it a formidable player in the digital communication landscape.The services offered by Retarus are designed with enterprises in mind, enabling seamless integration with prominent business platforms like SAP and Microsoft 365. The Retarus Messaging Platform provides advanced functionalities including Intelligent Document Processing (IDP), robust email security measures, and automated document handling capabilities that streamline workflows. Notably, their cloud fax services provide a reliable and efficient alternative to traditional fax infrastructures, allowing organizations to send and receive documents without the need for local hardware or complex setups. Customer satisfaction ratings reflect high levels of loyalty and trust, with many clients praising Retarus for its responsive support and effective solutions tailored to their specific needs. In addition to its strong service offering, Retarus continuously innovates to keep pace with the rapidly evolving technological landscape. The company is poised to capitalize on the growing demand for cloud services as businesses seek to enhance their digital communication capabilities amidst increasing cybersecurity threats and regulatory requirements. Moving forward, Retarus aims to expand its market presence by deepening its integration capabilities, enhancing user experience, and leveraging AI technologies to improve service delivery and operational efficiency. With its focus on security, reliability, and customer-centric solutions, Retarus is well-positioned to address the needs of modern enterprises navigating the complexities of digital transformation.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Coro offers a unified cybersecurity platform with integrated email security features, making it a strong choice for mid-market companies seeking simplified management.

Pricing posture

Moderate pricing tier with a mid-range cost structure.

Implementation/integration fit

Moderate implementation difficulty, designed for mid-market businesses.

What to verify

Verify pricing packages and the effectiveness of email security features.

Coro Cybersecurity is revolutionizing the way organizations approach digital security with its innovative modular platform, designed to unify and streamline cybersecurity operations. Rather than relying on disparate, vendor-segmented tools, businesses can benefit from a single, cohesive system that integrates 14 enterprise-grade security modules. These modules can be easily activated or deactivated as needed, providing organizations with the flexibility to scale their security measures in tandem with their evolving requirements. This approach minimizes headaches associated with integration, allowing organizations to concentrate on their core business activities without getting bogged down in technical complexities. What sets Coro apart is its clever combination of features that unify organizational security under one dashboard, one endpoint agent, and a singular data engine. Each security module works in concert with others, informing and enhancing overall safety without the need for cumbersome integration processes. Through an intuitive interface, users can monitor statuses and respond to threats efficiently, with a promise of immediate alert and support from Coro’s dedicated security professionals. The platform’s reputation for excellence is underscored by a AAA rating from SE Labs for best-in-class security protection, showcasing its effectiveness in thwarting modern threats. Coro caters to diverse business needs with specialized modules designed for various domains, such as endpoint protection, email security, cloud governance, and network security. Each solution is built to tackle specific vulnerabilities and deliver comprehensive coverage across a business’s entire digital landscape. The company prioritizes user experience, aiming for a setup that can be handled easily by both technical and non-technical team members alike. Organizations that choose Coro not only gain a robust security framework but also benefit from unmatched monitoring capabilities and rapid response times, ensuring that every potential threat is managed competently, allowing businesses to operate with confidence in their cybersecurity posture.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Intermedia provides a comprehensive suite of communication tools with strong email security features, ideal for SMBs and mid-market companies looking for integrated solutions.

Pricing posture

Moderate pricing tier with a mid-range cost structure.

Implementation/integration fit

Moderate implementation difficulty, suitable for SMBs to enterprises.

What to verify

Verify compliance with industry regulations and integration with existing communication platforms.

Intermedia is a cloud-based provider of an Intelligent Communications Platform designed to enhance business communication through integrated voice, video, chat, and contact center solutions. Headquartered in Sunnyvale, California, Intermedia serves over 150,000 businesses globally, offering a comprehensive suite of services tailored for both office and remote work environments.At the core of Intermedia's offerings is the Intermedia Unite platform, a Unified Communications as a Service (UCaaS) solution that consolidates various communication tools to streamline workflows. This platform includes features such as unlimited calling, video conferencing, team messaging, and file management, all enhanced by artificial intelligence capabilities. The Intelligent Contact Center provides omnichannel customer engagement, integrating voice, chat, email, and SMS support, along with tools for workforce optimization and AI-powered insights. Additionally, Intermedia offers specialized solutions like business email, file backup with SecuriSync, and advanced email security through AI Guardian, ensuring that businesses maintain compliance and security in their communications. Intermedia's commitment to customer satisfaction is evident in its 24/7 support provided by J.D. Power-certified experts and a robust service level agreement ensuring high uptime and reliability. The platform is designed to be scalable, allowing businesses to add integrated applications easily as they grow. With flexible pricing plans and a partner-first model that supports channel providers, Intermedia aims to empower organizations with modern cloud communication tools while simplifying management through a single administrative portal.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Trustwave's email security platform offers advanced protection against phishing and ransomware, making it a solid choice for mid-market and enterprise organizations.

Pricing posture

Moderate pricing tier with a mid-range cost structure.

Implementation/integration fit

Moderate implementation difficulty, suitable for mid-market to enterprise clients.

What to verify

Verify the effectiveness of email security features and compliance with data protection regulations.

Trustwave is a leading cybersecurity services provider committed to safeguarding organizations from the myriad of threats in today's digital landscape. Their comprehensive suite of managed security services, including Managed Detection and Response (MDR), Co-Managed Security Operations Centers (SOC), penetration testing, and digital forensics, equips businesses with the continuous protection required to shut out vulnerabilities and neutralize threats effectively. Trustwave's dedicated team of over 250 elite security experts at SpiderLabs not only defends but also actively hunts for hidden threats, ensuring they stay one step ahead of potential breaches. With unparalleled threat intelligence and a proven track record in offensive and defensive cybersecurity, Trustwave's solutions align with the demands of various industries, including healthcare, finance, retail, and government. They recognize that cybersecurity is not a one-size-fits-all solution; hence, they tailor their services, maximizing the efficacy of existing security investments and ensuring compliance with industry standards and regulations. Their advanced technologies and methodologies empower organizations to proactively identify risks, facilitating a robust security posture that assists in rapid threat detection and remediation. Trustwave is not just focused on immediate challenges; they equip organizations with a forward-thinking approach to security. By leveraging cloud-native platforms and integrating cutting-edge technology, Trustwave enables clients to manage their cybersecurity needs efficiently, without sacrificing quality or innovation. Their client-centric model fosters long-term relationships while providing practical and actionable intelligence, culminating in a proactive security strategy that is both resilient and adaptable to the ever-evolving threat landscape.

I

97% match

Website

A contact center with collaboration features goes beyond just basic communication channels. It equips agents with tools to work together seamlessly.

Learn more

Key differentiators

Capabilities

8.6

Innovation

9.1

Easy support

Easy ease of implementation

Low cost $

Meet with the supplier

Review with an expert

Why it’s ranked

Open Systems delivers managed SASE solutions that integrate security and networking, making it suitable for enterprises needing secure, scalable messaging solutions.

Pricing posture

Moderate pricing tier with a mid-range cost structure.

Implementation/integration fit

Moderate implementation difficulty, designed for mid-market and enterprise customers.

What to verify

Verify the scope of managed services and integration with existing security infrastructure.

Open Systems is a leading provider of Native, Managed Secure Access Service Edge (SASE) solutions, dedicated to delivering simple, secure connectivity and robust security outcomes for businesses operating in an increasingly digitized world. By leveraging advanced technologies and proven security protocols, Open Systems enables organizations to access data from anywhere at any time while safeguarding their networks from cyber threats. Their commitment to providing an exceptional customer experience is highlighted by features such as incident escalation to Level-3 engineers within minutes, proactive support, and round-the-clock service availability, all crucial for maintaining continuous operations and minimizing disruptions. At the core of Open Systems’ offering is the SASE Experience, which combines Security Service Edge (SSE) and Software-Defined Wide Area Network (SD-WAN) capabilities in a single platform. This integration not only elevates secure network access but also ensures operational excellence, enabling organizations to empower their remote workforce and facilitate cloud adoption effortlessly. With an impressive customer retention rate, Open Systems focuses on delivering tailored solutions that meet specific business needs, backed by a team of dedicated Customer Success Managers and a holistic service experience promise designed to drive measurable results for all clients. Open Systems distinguishes itself from other providers by delivering a comprehensive, all-in-one managed service that encompasses network and security transformations. With significant expertise and over 20 years in the industry, their operations are supported by a global Network and Security Operations Center (NOC/SOC) staffed with certified engineers. This proactive approach ensures seamless management of complex networks, enhances security, and improves overall performance, making Open Systems an invaluable partner for organizations looking to enhance their connectivity, security posture, and operational efficiency in an era marked by digital transformation.

Other great options

Take a look at some of the other messaging security companies we evaluated.

Infobip 8.9

Acronis 8.3

Vodafone 8.2

XCitium 8.2

Telstra 8.2

Silversky (Cygilant) 8.1

Ntirety (11:11 Systems) 8.0

Graphene 7.9

Vigilant 7.9

Thrive Networks 7.9

How to shortlist

Enterprises needing advanced AI-driven email protection

Abnormal

Fortinet

Abnormal Security excels with its behavioral AI for advanced threat detection, ideal for large enterprises. Fortinet offers robust, AI-driven threat intelligence across a broad portfolio. Verify how each integrates with your specific email systems and their effectiveness against zero-day threats.

Organizations seeking comprehensive, integrated cybersecurity platforms

Cisco

Fortra

Coro

Open Systems

Cisco provides extensive security solutions with strong integration capabilities. Fortra offers a broad cybersecurity platform with advanced email protection. Coro unifies cybersecurity operations with modular email security. Open Systems delivers managed SASE solutions for secure messaging. Assess their ability to integrate with your existing security tools and provide a unified defense across all communication channels.

Businesses focused on digital communications governance and compliance

Theta Lake

Retarus

Intermedia

TrustWave

Theta Lake specializes in governance and archiving for digital communications, crucial for regulatory adherence. Retarus provides secure cloud-based communication solutions with strong compliance. Intermedia offers integrated communication tools with robust email security. Trustwave's platform focuses on advanced protection against phishing and ransomware. Verify their compliance capabilities and how they align with your industry-specific regulations and data protection needs.

How Palomarr ranks messaging security companies

Palomarr's ranking of messaging security providers is based on a comprehensive evaluation of each company's capability and innovation, derived from a detailed analysis of 36 vendors in the category. Capability assesses the breadth of channels protected, speed of threat remediation, and accuracy in detecting zero-day malware and BEC. Innovation reflects the adoption of GenAI for phishing defense, deepfake protection, and autonomous risk management. While this ranking provides a strong starting point, it is crucial to conduct your own due diligence. We recommend verifying specific features, integration capabilities, and support offerings against your unique organizational needs and existing infrastructure to ensure the best fit.

Common buyer questions

What is messaging security?

Messaging security protects an organization's digital communication channels, including email, instant messaging, and collaboration platforms, from cyber threats. It has evolved from basic spam filtering to advanced defenses against phishing, Business Email Compromise (BEC), ransomware, and AI-generated attacks, leveraging technologies like behavioral AI and natural language processing.

Why is messaging security important for enterprises?

Messaging security is critical because nearly 95% of all human-associated security breaches originate from digital communication channels. Inadequate protection can lead to significant financial losses, data breaches, regulatory penalties, and reputational damage. Robust messaging security safeguards sensitive information, maintains operational continuity, and ensures compliance with data protection regulations.

What are the key features to look for in a messaging security solution?

Key features include advanced threat detection (e.g., AI-driven phishing and BEC detection, zero-day malware protection), multi-channel coverage (email, Slack, Teams, Zoom), behavioral analytics for user anomaly detection, post-delivery remediation, and strong integration capabilities with existing IT infrastructure. Look for solutions that offer autonomous risk management and a focus on human resilience metrics.

How do cloud-native solutions differ from traditional secure email gateways (SEGs)?

Traditional Secure Email Gateways (SEGs) reroute all email traffic through a perimeter fortress, often creating a single point of failure and lacking visibility into internal email. Cloud-native solutions, or Integrated Cloud Email Security (ICES), use direct API integrations with cloud mailboxes, offering easier deployment, full visibility into internal traffic, and post-delivery remediation capabilities, making them more suitable for modern cloud-based environments.

What is Business Email Compromise (BEC) and how does messaging security protect against it?

Business Email Compromise (BEC) is a sophisticated scam where attackers impersonate a trusted entity (e.g., CEO, vendor) to trick employees into transferring funds or divulging sensitive information. Messaging security protects against BEC by using behavioral AI and natural language processing to detect subtle anomalies in communication patterns, identify impersonation attempts, and flag suspicious requests that deviate from established user behavior baselines.

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Top Messaging Security companies 2026

Which messaging security vendors should buyers compare first?

How companies earn their ranking

Rankings

How to use these rankings

Fit for messaging security

Threat detection remediation evidence

Multi-channel protection tradeoffs

Controls to verify

Messaging Security: Protecting Your Enterprise from Evolving Threats

What matters in this category

Meet the leaders

I

I

I

I

I

I

I

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Other great options

How to shortlist

Enterprises needing advanced AI-driven email protection

Organizations seeking comprehensive, integrated cybersecurity platforms

Businesses focused on digital communications governance and compliance

How Palomarr ranks messaging security companies

Common buyer questions

See how messaging security suppliers stack up

Explore messaging security

Read the buyer's guide

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