Trouble Keeping Track of Your Keys? So Does Toyota: Lessons Learned from a Key Management Breach

Toyota recently experienced a data leak due to exposed access keys on GitHub. To prevent such incidents, it is crucial to implement basic controls that provide high value for low effort. One quick win is using secret scanning tools like Arnica or open-source tools like Semgrep to identify hardcoded secrets in repositories. Additionally, setting up webhooks for repository visibility changes and enforcing code reviews via GitHub's CODEOWNERS file can help improve security. However, a comprehensive analysis of developer permissions, identification of risky behavior, and regular scans for hardcoded secrets are necessary to ensure proper development ecosystem security.