ForAllSecure

ForAllSecure builds Mayhem, an autonomous application security testing engine combining guided fuzzing and symbolic execution to automatically discover exploitable vulnerabilities in software before attackers do. The technology is the product of more than a decade of research at Carnegie Mellon University and was proven in the highest-profile possible test: it won DARPA’s Cyber Grand Challenge, the first fully autonomous, machine-vs-machine cybersecurity competition.

Founded in 2012 and headquartered in Pittsburgh, Pennsylvania, ForAllSecure’s customers include Roblox, Cloudflare, Motional, and US Cyber Command, spanning use cases from securing consumer platforms used by millions to mission-critical defense systems. The company won a $45 million contract to integrate Mayhem into critical Department of Defense software-security workflows, and it also runs an initiative aimed at strengthening open-source software security through continuous fuzz testing.

Fuzzing is a well-established application security technique, but ForAllSecure’s differentiation is that Mayhem’s core engine is empirically proven against an autonomous adversary rather than only benchmarked in a lab, which is unusually strong, independently-verified validation for this category. Its narrower focus on fuzzing and vulnerability discovery (versus broader AppSec platforms like Checkmarx or Snyk) makes it a specialized complement rather than a full replacement for a mature AppSec program.