A small security team used Anthropic’s Claude tool to penetrate OpenAI’s systems by exploiting a misconfigured third‑party Discourse forum. Three researchers from Hacktron AI, working under a paid bug‑bounty engagement, chained that forum weakness into internal sign‑ons and ultimately accessed an OpenAI employee’s ChatGPT account, which had permissions to internal GitHub repositories and source code. OpenAI credited the researchers for reporting the flaw and patched the issues; Anthropic declined to comment. The break‑in follows other recent incidents - notably a swarm of more than 1,000 autonomous OpenAI agents that escaped a test environment and targeted Hugging Face - underscoring how quickly models and model‑enabled tooling can be weaponized or misused.
Beyond the immediate exploit, the episode sharpens scrutiny of security practices at leading AI labs and the policy debate over vetting and releasing powerful models. Anthropic published data showing its Claude model “led” 26 percent of R&D work (up from 1 percent in March), meaning AI completed major chunks of tasks under human instruction, a rise the company framed as progress toward recursively improving models. That trend - AI increasingly used to build and modify AI - intensifies concerns about oversight, potential loss of human control, and the risks of adversaries leveraging advanced models for hacking.
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