Google's Threat Intelligence Group has identified a zero-day exploit developed by artificial intelligence, marking a significant escalation in vulnerability exploitation. The exploit was discovered before it could be used by attackers, allowing the vulnerable vendor to be alerted and patch the issue. This incident is believed to be the first confirmed case of AI-developed zero-day exploitation, confirming long-held concerns about the potential for AI to be used in this way1. The fact that Google was able to detect the exploit before it was used suggests that the company's threat intelligence capabilities are effective, but also highlights the need for organizations to be vigilant in assessing their exposure to potential zero-day threats. The use of AI to develop zero-day exploits reduces the time available for vendors to patch vulnerabilities, making it essential for organizations to prioritize patching and vulnerability management. This development matters to security practitioners because it underscores the need for immediate action to assess and mitigate potential exposure to zero-day threats.