Recent outages on GitHub.com, including multiple October 7, 2026 incidents degrading Git Operations, Actions, Pull Requests, Issues, and Webhooks for up to an hour each, have highlighted recurring reliability challenges amid high developer traffic. A concurrent GhostAction supply chain campaign, active since early October, has compromised hundreds of maintainer accounts to inject malicious workflows stealing CI/CD secrets, cloud keys, and AI API credentials from tens of thousands of repositories. GitHub continues infrastructure scaling, including its Azure migration for improved capacity, while publishing root cause analyses for recent events. Traders are monitoring for further service degradations or expanded security incidents through year-end, given historical patterns of clustered disruptions and the platform’s role in core developer workflows.