Prama Yudhistira is Co-Founder of Hex Security (YC W26), an AI-powered offensive security platform that automates penetration testing at scale. Prama is a Computer Science student at Georgia Institute of Technology based in San Francisco.

Before founding Hex Security in 2026, Prama worked at Codegen and has been deeply involved in the cybersecurity and AI space. He previously gained experience in software development and security research.

Hex Security's AI agents have already found critical vulnerabilities in dozens of YC companies, preventing an estimated $3B+ in potential damages based on exposed record counts. The platform discovered SQL injections exposing billions of records and gained access to hundreds of codebases.

Hex Security was founded in 2026 with co-founders Huzaifa Ahmad and Ahmad Khan as part of Y Combinator's Winter 2026 batch. The company built AI agents that run continuous penetration tests 24/7, replacing manual annual pentests with automated offensive security.

The company operates from San Francisco with a team of 3 employees and has demonstrated proof-of-concept worms that could infect entire networks. Hex Security addresses the $10T+ annual losses companies face from preventable vulnerabilities through continuous automated security testing.