AI-enabled cyber attacks were up 89 percent in 2025 compared with a year earlier, according to data from security group CrowdStrike. Meanwhile, the average time between an attacker first gaining access to a system and acting maliciously fell to 29 minutes last year, a 65 percent acceleration from 2024. “The game is asymmetric; it is easier to identify and exploit than to patch everything in time,” said one person close to a frontier AI lab. Anthropic’s Graham said there were also internal concerns that companies would use Mythos to find “more vulnerabilities than they could hope to deal with in the near future.” The heightened fears about AI and cyber security come amid signs that agents, which act autonomously on users’ behalf to conduct tasks, could also fuel a further rise in AI-enabled hacking. Last September, Anthropic detected the first reported AI cyber-espionage campaign believed to be coordinated by a Chinese state-sponsored group.…