GitHub investigates internal repositories breach claimed by TeamPCP

Published on May 20, 2026

GitHub is investigating a breach of its internal repositories after the TeamPCP hacker group claimed to have accessed approximately 4,000 repositories containing private code. [...]

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GitHub Investigating TeamPCP Claimed Breach of ~4,000 Internal Repositories

May 20, 2026
GitHub on Tuesday said it's investigating unauthorized access to its internal repositories after the notorious threat actor known as TeamPCP listed the platform's source code and internal organizations for sale on a cybercrime forum."While we currently have no evidence of impact to customer information stored outside of GitHub's internal repositories (such as our customers' enterprises,

Grafana GitHub Breach Exposes Source Code via TanStack npm Attack

May 20, 2026
Grafana Labs, on May 19, 2026, said an investigation into its recent breach found no evidence of customer production systems or operations being compromised.It said the scope of the incident is limited to the Grafana Labs GitHub environment, which includes public and private source code along with internal GitHub repositories."After the initial assessment, we found that in addition to source