How GitHub gave every repository a durable owner

GitHub faced challenges with identifying owners for its large number of repositories, which became a significant issue during secret scanning remediation efforts. Historically, ownership was clear for repositories linked to production services, but many repositories lacked identifiable owners, complicating security workflows. To address this, GitHub implemented a new ownership model using custom properties to classify repositories under "Service Catalog," "Hubber Handle," or "Team," ensuring each repository had a designated owner. This initiative involved archiving unused repositories, validating ownership, and integrating a periodic sync from the Service Catalog to maintain accurate records. The enforcement of repository ownership was facilitated by a GitHub App, which issued warnings and archived repositories without ownership, ultimately reducing risks and improving repository management. The process included learning from incidents to improve notification systems and ensure reliable data handling, resulting in a streamlined system where all active repositories now have validated ownership and archived repositories accurately reflect their status.

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