Cybersecurity M&A Roundup: 26 Deals Announced in May 2026 - SecurityWeek

Twenty-six cybersecurity-related merger and acquisition (M&A) deals were announced in May 2026. For a detailed view of the more than 420 acquisitions announced in 2025, check out SecurityWeek’s annual M&A report. Here are some of the most important cybersecurity M&A deals announced in May 2026:    Akamai to acquire LayerX  Akamai has agreed to acquire LayerX, a company specializing in AI and browser security, for roughly $205 million in an all-cash deal. LayerX has developed a security platform that provides real-time visibility and control over user and agentic activities across browsers, applications, and IDEs. Its technology enables Akamai to expand its Zero Trust and application security portfolio with AI usage control capabilities.  Check Point acquires Deepchecks Check Point Software Technologies has acquired the team and intellectual property of AI evaluation startup Deepchecks, reportedly for $10 million to $20 million. The goal of the transaction is to accelerate Check Point’s newly launched Agentic Network Security Orchestration platform. By integrating Deepchecks’ continuous monitoring and LLM evaluation technology, Check Point provides an essential validation layer for autonomous AI security agents. Cisco acquires Astrix Security Cisco has announced its intent to acquire Israeli non-human identity security startup Astrix Security for an estimated $400 million. The goal of the transaction is to extend Cisco’s Zero Trust architecture to what it calls the ‘agentic workforce’. By integrating Astrix’s non-human identity management tools directly into Cisco Identity Intelligence, Duo IAM, and Splunk, Cisco plans to give security teams the ability to discover, authenticate, govern, and continuously monitor autonomous AI actors across the enterprise network infrastructure. Cycurion acquires Halo Privacy, HavenX, and Secuvant Publicly traded cybersecurity provider Cycurion, Inc. has announced the acquisition of Halo Privacy, HavenX, and Secuvant. The Secuvant deal was valued at $2.875 million, while specific purchase terms for Halo Privacy and HavenX were withheld. The unified goal of these consecutive acquisitions is to build a massive, end-to-end defense platform that combines Cycurion’s solutions with Halo’s secure communications, HavenX’s forensic attribution capabilities, and Secuvant’s automated SOC-as-a-Service workflows. Cyera acquires Genie Security Data security giant Cyera has completed the acquisition of five-month-old endpoint data protection startup Genie Security for an estimated $50 million. The transaction is designed to expand Cyera’s Data Security Posture Management (DSPM) ecosystem. By absorbing Genie Security’s endpoint telemetry agents into its platform, Cyera aims to address a critical corporate blind spot: preventing sensitive corporate data from being leaked or fed into generative AI tools and autonomous software agents. Datavault AI to acquire CyberCatch Data monetization and edge computing firm Datavault AI has entered into a binding letter of intent to acquire cybersecurity vendor CyberCatch in an all-stock transaction valued at roughly $100 million. Once finalized, CyberCatch will operate as a wholly-owned subsidiary, keeping its current management intact. The main goal of the acquisition is to bake CyberCatch’s AI-powered continuous compliance testing and automated penetration tools directly into Datavault AI’s edge GPU processing network. Dragos acquires Phosphorus Industrial cybersecurity firm Dragos has acquired xIoT security specialist Phosphorus, a move aimed at strengthening its ability to help organizations secure and manage the growing number of connected devices embedded across critical infrastructure and other operational networks. SecurityScorecard acquires Driftnet Cybersecurity ratings firm SecurityScorecard has completed the acquisition of British internet scanning and threat intelligence startup Driftnet for an undisclosed sum. The primary goal of the transaction is to embed Driftnet’s high-fidelity, port-agnostic scanning capabilities into SecurityScorecard’s newly launched TITAN AI engine. Torq acquires Jit Agentic security company Torq has completed the acquisition of fellow Israeli cybersecurity startup Jit for an estimated $70 million. The transaction brings Jit’s entire 30-person team under the Torq umbrella. The primary goal of the acquisition is to append Jit’s advanced AI Context Graph layer directly onto Torq’s AI SOC platform. WatchGuard acquires Perimeters.io WatchGuard Technologies has finalized the acquisition of cloud application security startup Perimeters.io. The goal of the transaction is to absorb Perimeters’ technology to power WatchGuard’s newly launched service, WatchGuard CloudDR. By merging Perimeters’ technology directly into its MSP-focused ecosystem, WatchGuard intends to give its partners a single, multi-tenant dashboard to continuously audit configurations, flag compromised credentials via ITDR, and automatically neutralize shadow AI and shadow IT risks across cloud applications. Zscaler acquires Symmetry Systems Cloud security giant Zscaler has announced its intent to acquire AI and data security firm Symmetry Systems. The goal is to bring native identity and data mapping directly into Zscaler’s Zero Trust Exchange. By integrating Symmetry Systems’ access-graph technology, Zscaler will give security teams a centralized visual control plane to track exactly what data autonomous AI agents are touching, enforce absolute least-privilege data policies, and automatically contain anomalous agent behaviors. Other cybersecurity M&A deals announced in May 2026:  Austability Group acquires majority stake in Nine23  Boost Security acquires SecureIQx and Korbit.ai Cranium AI acquires Aiceberg Eurazeo acquires majority stake in Nextron Systems FutureRange acquires Echo IT Harbor IT acquires ComTech Computer Services Integritis acquires JS Information Governance  KPIT to acquire Cymotive NextPoint Group acquires UScontracting OPAQUE acquires Cryptographic AI Technology Snowflake to acquire Natoma Terra Quantum merges with Axiom Intelligence Acquisition Corp 1 at $3.5 billion valuation Related: Cybersecurity M&A Roundup: 33 Deals Announced in April 2026 WRITTEN BY Eduard Kovacs Eduard Kovacs (@EduardKovacs) is senior managing editor at SecurityWeek. He worked as a high school IT teacher before starting a career in journalism in 2011. Eduard holds a bachelor’s degree in industrial informatics and a master’s degree in computer techniques applied in electrical engineering. 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