Security researchers discovered over a hundred high-risk vulnerabilities in the UK government's public code using Claude Opus and Sonnet AI models.

Security researchers scanned 349 public code repositories of the UK government using Claude Opus and Sonnet AI models, finding that about two-thirds had vulnerabilities. The most severe involved credential leaks from the Planning Inspectorate, posing a risk to the SharePoint system. The vulnerabilities stemmed from the government's lack of cybersecurity maintenance, not the open-source software itself, prompting the UK government to consider tightening its code public policy.