importantSYS.SOURCE: The Hacker News• 2026-09-08T19:49:17+05:30

ChatGPT Vulnerability Exploits Hidden Prompt to Exfiltrate Gmail Data

#ai #vulnerability #data privacy #cybersecurity

A vulnerability in ChatGPT allowed attackers to secretly exfiltrate Gmail data through a hidden channel by planting a malicious prompt in conversations. Check Point Research disclosed the issue to OpenAI, which addressed the internal service but no user action was required.

Check Point Research said in a report published today that a single instruction planted in a ChatGPT conversation could cause ChatGPT to quietly work for an attacker while answering the user's question as usual.

In the company's proof of concept, that hidden work read data from the user's connected Gmail account and passed it to a second ChatGPT account through a hidden channel

Read original article

*** END OF TRANSMISSION ***

> GOOGLE CHROME V8 ZERO-DAY EXPLOITED IN THE WILD FOR SANDBOX CODE EXECUTION > AI RESEARCHER JACOB COXON RESIGNS FROM ANTHROPIC, WARNS OF EXISTENTIAL RISKS > CRITICAL CPANEL VULNERABILITY ALLOWS PRIVILEGE ESCALATION VIA EMAILTRACK MODULE > F5 BIG-IP APM MALWARE EVADES DISK SCANS BY INJECTING PHP WEB SHELL INTO MEMORY > GPT-5.6 SOL'S APPLICATION IN QUANTUM COMPUTING EXPERIMENTS > THE PSYCHOLOGY OF MOTIVATION AND SCIENTIFIC PROGRESS > RESEARCHER DEMONSTRATES BYPASS OF MICROSOFT DEFENDER'S SHIELDBREAK PATCH VIA SHIELDCRASH VULNERABILITY > COPYRIGHT ABOLITION CLAIM AND MASTODON WEB APPLICATION TECHNICAL REQUIREMENTS > SAP ADDRESSES CRITICAL CVSS 10.0 VULNERABILITY IN KERNEL ALLOWING UNAUTHENTICATED RCE > TRADEMARK STATUS OF 'TWEET' AND BIRD LOGO IN X V. PROJECT BLUEBIRD CASE> GOOGLE CHROME V8 ZERO-DAY EXPLOITED IN THE WILD FOR SANDBOX CODE EXECUTION > AI RESEARCHER JACOB COXON RESIGNS FROM ANTHROPIC, WARNS OF EXISTENTIAL RISKS > CRITICAL CPANEL VULNERABILITY ALLOWS PRIVILEGE ESCALATION VIA EMAILTRACK MODULE > F5 BIG-IP APM MALWARE EVADES DISK SCANS BY INJECTING PHP WEB SHELL INTO MEMORY > GPT-5.6 SOL'S APPLICATION IN QUANTUM COMPUTING EXPERIMENTS > THE PSYCHOLOGY OF MOTIVATION AND SCIENTIFIC PROGRESS > RESEARCHER DEMONSTRATES BYPASS OF MICROSOFT DEFENDER'S SHIELDBREAK PATCH VIA SHIELDCRASH VULNERABILITY > COPYRIGHT ABOLITION CLAIM AND MASTODON WEB APPLICATION TECHNICAL REQUIREMENTS > SAP ADDRESSES CRITICAL CVSS 10.0 VULNERABILITY IN KERNEL ALLOWING UNAUTHENTICATED RCE > TRADEMARK STATUS OF 'TWEET' AND BIRD LOGO IN X V. PROJECT BLUEBIRD CASE