GitHub Actions security gets overhaul

GitHub's new architecture uses isolated execution environments for each workflow job, reducing the risk of one job contaminating others through shared resources. This isolation extends to network access, limiting outbound connections and preventing unauthorized data exfiltration. The update introduces detailed audit logs for all Actions, providing a transparent record of activity for security analysis and compliance. These logs include information on resource access, network connections, and code execution, enabling faster incident response. This overhaul arrives after increasing concerns about supply chain attacks targeting CI/CD systems, including GitHub Actions. By implementing stricter controls, GitHub aims to mitigate risks such as malicious code injection and credential theft.