Reflex Security

Reflex Security replaces the tabletop exercise with a live crisis simulation. Instead of a facilitator walking a room through slides, Reflex builds a breach scenario from a company's real environment and tools in minutes, then runs it with AI adversaries and pressured stakeholders, from an attacker inside the network to a reporter calling legal for comment, who react to every decision the team makes.

Security, legal and executive teams practice the cross-functional calls a real incident forces on them, and Reflex writes the after-action report the moment the exercise ends, with every finding tied to the moment in the simulation it came from.

Marlow Bryant, a cybersecurity investor at March Capital and ClearSky, founded the company in Los Angeles in 2025 with Cassio Goldschmidt, ServiceTitan's longtime CISO.