Thirty cybersecurity-related merger and acquisition (M&A) deals were announced in November 2025.
Here are some of the most important cybersecurity M&A deals announced in November 2025:
Arctic Wolf acquires UpSight Security
Security operations firm Arctic Wolf has announced buying UpSight Security to strengthen its Aurora Endpoint Security platform. The SOC company is integrating UpSight’s predictive AI and rollback capabilities to provide enhanced defense against ransomware and other threats.
Bugcrowd acquires Mayhem Security
Bug bounty company Bugcrowd has acquired application security firm Mayhem Security. Bugcrowd told SecurityWeek that the acquisition of Mayhem has nearly doubled its valuation. Mayhem technology will be integrated with Bugcrowd’s human-driven crowdsourced testing to enable organizations to ship secure software by continuously finding and prioritizing vulnerabilities.
Cyberinsurance provider Coalition announced the acquisition of Wirespeed, a managed detection and response (MRD) company. Wirespeed’s MDR solutions will be combined with Coalition’s suite of cyber risk management tools and coverage.
Huntress acquires Inside Agent
Managed security services provider Huntress has acquired Inside Agent, a UK-based company specializing in automated security and insider threat detection for Microsoft 365 environments. The acquisition expands Huntress’ identity security offerings and accelerates the development of a new identity security posture management (ISPM) solution.
MorganFranklin Cyber acquires Lynx Technology Partners
Cybersecurity advisory and managed services firm MorganFranklin Cyber announced the acquisition of cybersecurity and risk management services provider Lynx Technology Partners. The acquisition enables MorganFranklin Cyber to expand its GRC capabilities.
Palo Alto Networks acquires Chronosphere
Palo Alto Networks has agreed to acquire observability platform provider Chronosphere in a deal valued at $3.35 billion. The combination of Chronosphere’s observability platform with Palo Alto’s AgentiX will deploy AI agents on massive amounts of data monitored by Chronosphere’s platform to detect performance issues, autonomously investigate the root cause, and close the loop with agentic remediation.
Autonomous cyber risk quantification and management solutions provider SAFE announced the acquisition of Balbix, a company specializing in continuous threat exposure management (CTEM). SAFE and Balbix will offer an agentic-AI-powered cyber risk platform that unifies cyber risk and exposure management.
SSL.com acquires VikingCloud’s digital certificate business
Certification authority SSL.com has acquired the digital certificate business of cybersecurity and compliance company VikingCloud. The deal expands SSL.com’s customer base. For VikingCloud, the deal is part of its strategy to focus on its core cybersecurity and compliance offerings.
Cloud security firm Zscaler has acquired AI security company SPLX to extend its Zero Trust Exchange platform with AI asset discovery, automated red teaming, and governance capabilities.
Other cybersecurity M&A deals announced in November 2025:
Allurity acquires Monti Stampa Furrer & Partners (MSF Partners)
Axiom GRC acquires IS Partners
Corsica Technologies acquires AccountabilIT
CyberRisk Alliance acquires ChannelPro
Harbor IT acquires New England Network Solutions
McAfee acquires MineOS consumer privacy app
Meditology Services acquires CORL
Omega Systems acquires PEAKE Technology Partners
Pentera acquires EVA Information Security
RKON Technologies acquires ScaleSec
SEK (Security Ecosystem Knowledge) acquires Netbr
Related: ServiceNow to Acquire Identity Security Firm Veza in Reported $1 Billion Deal
Related: Cybersecurity M&A Roundup: 45 Deals Announced in October 2025
