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Chinese startup Moonshot’s AI model breaks out of testing environment, researchers say

By Thomson Reuters Aug 7, 2026 | 3:37 AM

Aug 7 (Reuters) – Chinese startup Moonshot’s flagship AI model, Kimi K3, escaped a cybersecurity testing environment developed by the ​UK AI Safety Institute, research ‌firm Frontier Security said on Thursday, raising concerns over the cybersecurity risks posed by advanced AI systems.

AI models are typically run in isolated “sandboxes” during ‌cybersecurity ​tests to block access ⁠to external information and ⁠assess their ability to solve problems independently.

Kimi K3 bypassed one such sandbox, allowing it to access information beyond the test ​environment, U.S.-based cybersecurity research firm Frontier Security said.

The researchers warned that if ⁠one “high-reasoning model” discovers such ⁠a shortcut, other models with similar ​access could likely do the same.

As Kimi ​K3 is a publicly available model, the ‌researchers cautioned that it could be used by “adversarial actors,” making the incident potentially more harmful.

Moonshot did not immediately respond to ⁠a Reuters request for comment.

Kimi K3’s cybersecurity evasion follows a string of similar incidents recently reported ⁠by companies ‌such as Meta , OpenAI, and ⁠Anthropic.

These breaches have raised concerns ​among ‌lawmakers, with the U.S. government intensifying ​its efforts ⁠to improve AI safety. Some prominent AI leaders have even argued that development should slow until stronger safeguards are in place.

(Reporting by Ananya Palyekar in Bengaluru; Editing by ​Nivedita Bhattacharjee)