AI agents hacked Anthropic, maker of arguably the most capable AI models for cyberdefense Matthias Bastian View the LinkedIn Profile of Matthias Bastian Oct 28, 2026 Nano Banana Pro prompted by THE DECODER Key Points Cybersecurity startup Cathedral used AI agents to break into Anthropic's internal systems through third-party business software as part of the Claude developer's own bug bounty program. Cathedral says AI agents found Slack messages, salary dat