Researcher Finds Public GitHub Repo Exposing Sensitive CISA Credentials

The episode recounts how GitGuardian security researcher Guillaume Valadon, while monitoring public GitHub for leaked secrets, discovered a publicly accessible repository labeled "CISA-Private" containing highly sensitive CISA materials, including internal DHS/CISA credentials, cloud keys, tokens, plaintext passwords, logs, and files such as "Important AWS Tokens" and a CSV listing usernames and passwords for internal systems. Believing a contractor likely used GitHub to move work from a work device to a home device, Valadon escalated via responsible disclosure to CERT, then involved journalist Brian Krebs to reach CISA faster when the repo remained public. After additional outreach, t...