US cybersecurity chief accidentally leaked official data into ChatGPT

In summer 2025, the acting head of the US cybersecurity agency CISA uploaded work documents into a ChatGPT chat. It's not about state secrets, but materials marked 'for official use only'.

The context adds piquancy: CISA is responsible for protecting critical digital systems of the US from cyberattacks. The story became a worrying reminder: even security experts can underestimate the risks of working with AI 🫢