At Mythos Speed: A Defender's Playbook for the AI Vulnerability Surge in 2026

<h2>Key Takeaways</h2> <ul> <li><strong>Discovery has been commoditized.</strong> Frontier AI models like Mythos and GPT 5.5 are making vulnerability discovery cheap, fast, and broadly accessible.</li> <li><strong>The defender's job is to match the speed.</strong> Manual triage has lost the throughput race.</li> <li><strong>Threat intelligence is the prioritiz