Mark Zuckerberg’s company has said its flagship LLM carried out a hacking operation following similar admissions by OpenAI and Anthropic

Meta has become the third major tech company to report its AI going rogue and hacking a third-party company. The incident involved Muse Spark 1.1, an AI model marketed by the company as “superintelligent.”

In a statement this week, Meta said that the model was undergoing testing by a cybersecurity company, ⁠Irregular, when it “exploited a ‌security vulnerability” in Irregular’s systems, accessed the open internet, and hacked an unnamed third company.

Meta blamed the incident on a “misconfiguration” in Irregular’s systems.

The incident follows similar cases at OpenAI and Anthropic. Last month, OpenAI’s GPT‑5.6 Sol and another pre-release model were undergoing internal testing when they identified a security vulnerability, accessed the internet, and attempted to locate the solution to a cybersecurity puzzle by hacking a repository of previous test results.