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OpenAI ChatGPT Atlas BioShocking fix

Advisory/Mitigation
First reported
Last updated
Happening score
H score 34
1 unique sources, 1 articles

Summary

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OpenAI delivered a working fix for BioShocking in ChatGPT Atlas, closing a prompt-injection path that could push an AI browser toward unsafe real-world actions and credential theft. The mitigation addresses a concrete agentic-browser safety weakness that researchers showed across six mainstream products. OpenAI was the only vendor reported to have implemented an effective fix after receiving the disclosure.

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IPhone AI chatbot traffic leak of API keys, replayable tokens, and open relays

Technical Analysis
H score27 First: 30.06.2026 16:49 Last: 30.06.2026 16:49 Sources 1

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Open Happening

LayerX BioShocking prompt injection against agentic browsers

Technical Analysis
H score30 First: 24.06.2026 19:05 Last: 24.06.2026 19:05 Sources 1

How related: A proof-of-concept (PoC) for the attack, devised by researchers at LayerX, was successfully tested against six mainstream agentic browser products (ChatGPT Atlas, Comet, Fellou, Genspark Browser, Sigma Browser, and the Claude Chrome plugin), with only one addressing it after receiving the report.

About this happening: Researchers demonstrated **BioShocking**, a prompt-injection technique that pushed **six agentic browsers and plugins** past guardrails and made them **copy login credentials** fo...

Open Happening

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Security Tool/Service
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Commercial Activity
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Open Happening

OpenAI ChatGPT Lockdown Mode rollout limits prompt-injection exfiltration paths

Security Tool/Service
H score10 First: 06.06.2026 16:36 Last: 06.06.2026 16:36 Sources 1

About this happening: **OpenAI ChatGPT** is rolling out **Lockdown Mode** for eligible personal accounts, reducing the risk of **prompt-injection-driven data exfiltration**. The update adds stricter li...

Open Happening

Timeline

  1. 01.07.2026 00:50 2 articles · 2h ago

    OpenAI fixes BioShocking in ChatGPT Atlas

    Mitigation Patch Update

    LayerX says OpenAI implemented a working fix for the BioShocking prompt injection issue in the ChatGPT Atlas browser after the disclosure of a malicious webpage PoC that pushed agentic browsers toward unsafe real-world actions. The same report says Anthropic's patch for the Claude Chrome plugin was ineffective and Perplexity AI closed the report without fixing the issue.

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