Will Mythos & Glasswing End the Zero-Day Era as We Knew It?

For decades, cybersecurity strategy has revolved around a shared assumption: zero-day vulnerabilities are rare, expensive to find, and difficult to exploit at scale. That assumption is now breaking down. The emergence of Mythos, the advanced AI system developed by Anthropic, marks a turning point in how vulnerabilities are discovered, weaponized, and defended against—and it forces security leaders to rethink long-held priorities.