The GitHub Blog : Alexis Wales is the Chief Information Security Officer of GitHub. She leads a team of security experts focused on safeguarding the GitHub platform, products and the open source community, empowering more than 150 million developers worldwide to build and deploy software securely on GitHub.

Alexis has 20 years of experience defending critical national and private sector networks, spanning positions with the Department of Defense and the Department of Homeland Security’s Cybersecurity and Infrastructure Security Agency (CISA). This experience sparked her passion for collaboration between the public and private sectors to solve the hardest security challenges that threaten the technology we use every day.

We’re updating our bug bounty program standards to prioritize quality submissions, clarify shared responsibility boundaries, and evolve how we reward low-risk findings.

How we validated, fixed, and investigated a critical vulnerability in under two hours, and confirmed no exploitation.

Learn to find and exploit real-world agentic AI vulnerabilities through five progressive challenges in this free, open source game that over 10,000 developers have already used to sharpen their security skills.