Promptfoo has raised more than $23 million in funding for a platform that helps developers secure LLMs and AI agents.
The post OpenAI to Acquire AI Security Startup Promptfoo appeared first on SecurityWeek.
Cybersecurity M&A Roundup: 42 Deals Announced in February 2026
Significant cybersecurity M&A deals announced by Check Point, Booz Allen, Proofpoint, Sophos, Palo Alto Networks, and Zscaler.
The post Cybersecurity M&A Roundup: 42 Deals Announced in February 2026 appeared first on SecurityWeek.
SecurityWeek Report: 426 Cybersecurity M&A Deals Announced in 2025
SecurityWeek’s M&A data indicates that today’s market is more disciplined, and it seems to favor GRC, data protection, and identity.
The post SecurityWeek Report: 426 Cybersecurity M&A Deals Announced in 2025 appeared first on SecurityWeek.
Palo Alto Networks to Acquire Koi in Reported $400 Million Transaction
Koi has developed an endpoint security solution that Palo Alto will use to enhance its products.
The post Palo Alto Networks to Acquire Koi in Reported $400 Million Transaction appeared first on SecurityWeek.
Vega Raises $120M in Series B Funding to Grow Security Analytics Platform
Led by existing investor Accel, with participation from Cyberstarts, Redpoint, and CRV, the Series B round brings the total amount raised by the company to $185 million.
The post Vega Raises $120M in Series B Funding to Grow Security Analytics Platform appeared first on SecurityWeek.
Cybersecurity M&A Roundup: 34 Deals Announced in January 2026
Significant cybersecurity M&A deals announced by CrowdStrike, Infoblox, JumpCloud, LevelBlue, OneSpan, and Radware.
The post Cybersecurity M&A Roundup: 34 Deals Announced in January 2026 appeared first on SecurityWeek.
Zscaler Acquires Browser Security Firm SquareX
Zscaler says the acquisition will allow customers to embed lightweight extensions into any browser, providing increased security and eliminating the need for third-party browsers.
The post Zscaler Acquires Browser Security Firm SquareX appeared first on SecurityWeek.
Varonis Acquisition of AllTrue.ai Valued at $150 Million
The data security firm has acquired the AI trust, risk, and security management company to expand its capabilities.
The post Varonis Acquisition of AllTrue.ai Valued at $150 Million appeared first on SecurityWeek.
Rein Security Emerges From Stealth With $8M, Bringing Inside-Out Protection to AppSec
Rein aims to close the production visibility gap by stopping attacks inside the application runtime.
The post Rein Security Emerges From Stealth With $8M, Bringing Inside-Out Protection to AppSec appeared first on SecurityWeek.
CrowdStrike to Acquire Browser Security Firm Seraphic for $420 Million
News of the move to acquire Seraphic comes less than a week after CrowdStrike announced an agreement to acquire identity security startup SGNL for $740 million.
The post CrowdStrike to Acquire Browser Security Firm Seraphic for $420 Million appeared first on SecurityWeek.
