Modern AI models have prodigious coding capabilities—whether that poses a greater advantage for legitimate cyberdefenders or for malicious hackers is an open question. Either way, AI companies are thriving.

The cybersecurity sector has been in crisis mode in recent months as the spread of new and powerful AI systems, like Anthropic’s Mythos, has threatened to make much of the world’s existing cyberdefense infrastructure effectively obsolete. On Wednesday, the security company that built PHP, a technology powering as much as 70% of the world’s websites, issued an emergency patch for two major vulnerabilities that, if exploited, would allow hackers to take control of web servers.…