Assail

Assail is a cybersecurity company focused on adversarial exposure validation for enterprise and government environments. Founded by API security researcher Alissa Knight, the company developed Ares, an autonomous offensive security platform designed to find and validate vulnerabilities before attackers can exploit them. Ares continuously discovers and maps APIs, including undocumented and shadow endpoints, and assesses web applications and mobile infrastructure. Rather than simply flagging possible weaknesses, it can exploit vulnerabilities and provide evidence showing how a breach could occur, helping security teams prioritize remediation and verify fixes.

The platform uses coordinated AI agents to conduct offensive testing across application environments, covering issues such as broken authentication, authorization flaws, and business logic vulnerabilities. Users can also interact with Ares and its agents in natural language to ask about exposed systems, likely attack paths, and remediation priorities. Assail presents Ares as a way to increase penetration-testing frequency, improve visibility into application risk, and reduce reliance on manual testing.