Cybersecurity M&A Roundup: 30 Deals Announced in November 2025

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.

Coalition acquires Wirespeed

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 ...