CISA Built Its Incident Playbook During the Incident

The federal cybersecurity agency revealed in a July 9 post-mortem that it lacked a prepared response plan when a contractor uploaded sensitive government credentials to a public GitHub repository in May 2026. CISA staff built the playbook ad hoc during the early response phase. The agency discovered the exposure only after journalist Brian Krebs contacted it directly. The credential leak itself caused no data compromise.