MyChart

Electronic health records company Epic reportedly halted most of its software development after Anthropic's AI uncovered a hidden security flaw in MyChart, its patient-facing platform. The report highlights growing use of AI systems to probe medical software for vulnerabilities, raising questions about how healthcare vendors respond when automated tools expose undisclosed weaknesses in widely used systems.

Epic Systems, maker of the widely used MyChart patient portal, has paused most product development for roughly six weeks to address security flaws, CEO Judy Faulkner told Modern Healthcare. An Epic spokesperson said the company's product roadmap remains unchanged. The flaws surfaced after Epic deployed technology from Anthropic, raising questions about security in healthcare AI deployments.