
Security researchers from Hacktron successfully breached OpenAI’s internal systems using Anthropic’s Claude Opus 5, exploiting a vulnerability in Discourse image processing to gain remote code execution. The team accessed the 'Monorepo' repository and submitted a pull request via an employee's Codex account to verify access, receiving a $6,500 bug bounty from OpenAI. The attack vector was adaptable, allowing the group to compromise infrastructure at Slack, Meta, and GitHub within days using less than $3,000 in API costs. While the vulnerabilities have been patched, the incident highlights how rapidly generative AI is lowering the barrier for sophisticated cyberattacks.
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Claude Opus 5 used to hack OpenAI via Discourse
3 developments
CheMeleon is a foundation model for chemistry that learns general molecular patterns from a million PubChem entries rather than specific property labels. This pre-training allows it to outperform classical expert-driven models and other AI baselines when fine-tuned on just a few data points, solving the critical bottleneck of sparse experimental data in drug discovery. Its impact is already visible: nine of the top twenty entries in a major OpenADMET contest used it, and one pharmaceutical company has made it their default starting point for modeling. This shifts molecular screening from trial-and-error to pattern-based prediction, significantly reducing the need for expensive synthesis.