Anthropic's Claude Mythos Can Now Write Zero-Day Exploits. Your WordPress Site Is Next.
On 7 April 2026, Anthropic revealed their new model Mythos Preview can autonomously find and exploit zero-day vulnerabilities in operating systems, browsers, and kernels, for under $50 a run. 96% of WordPress vulnerabilities live in plugins. Here's what that means for every site owner, and why web maintenance stopped being optional this week.