Four of five enterprises that secured AI agent identities still can't contain one that goes rogue

Visa’s president of technology, Rajat Taneja, walked the VB Transform 2026 audience through aiming Anthropic’s Mythos at Visa’s own payment network . The model stitched minor weaknesses into working exploit chains, and Visa open-sourced the harness that governed the hunt. That’s what it looks like when an enterprise has the engineering depth to act on what it finds.