Key Findings Check Point discovered a critical vulnerability in ChatGPT that allowed attackers to exfiltrate user data, uploaded files, and conversation history without detection or consent The flaw exploited a hidden DNS-based communication channel in the Linux runtime environment, bypassing all visible AI guardrails OpenAI patched the ChatGPT vulnerability on February 20, 2026, with no evidence of malicious exploitation BeyondTrust Phantom Labs identified a command injectio