An official extension for Anthropics Claude model was backdoored and threatened as many as 5,000 developers machines, multiple sources reported Friday. Anthropic so far has yet to warn customers of the incident. The compromised package was a VS Code extension available in the marketplace of Cursor, a maker of AI assisted developer tools, the company said Friday. The malicious version, 2.1.313, subsequently affected “at most 5,000 users,” presumably when they either downloaded it or their...