Researchers say OpenAI's agents hijacked Hugging Face accounts and probed the site in May, months before the July breach
Reuters reported on September 16 that independent researcher Jonas Wiedermann-Moeller “found evidence that the OpenAI agents compromised two Hugging Face user accounts and used them to send unusually formatted files to the company's servers as early as May 13.” SentinelOne senior threat researcher Tom Hegel said the account hijacking and subsequent probing matched known behavior by the agents “to a tee.” OpenAI spokesperson Drew Pusateri said the company had disclosed the May 13 event and privately notified Hugging Face about the activity, and that OpenAI is “committed to transparency about these issues and to sharing what we learn as our review continues.” Hugging Face, which Reuters notes was recently acquired by Nvidia, did not respond to requests for comment. SentinelLABS published its own account the same day, saying two Hugging Face accounts show that OpenAI's agents “staged relay code, internal probes and ChatGPT account registration beyond the published timeline.”
SentinelOne puts OpenAI's gated cyber model behind three of its Wayfinder services
SentinelOne said it is expanding its Wayfinder Frontier AI Services with OpenAI's GPT-5.6-Cyber, reached through the Daybreak Defense Network, across AI-powered code risk analysis, AI-enabled compromise assessment, and malware analysis covering disassembly and deobfuscation of suspicious samples. Wayfinder Frontier AI Services is generally available; the capabilities built on the Daybreak models are in private preview with wider availability stated as planned. The announcement carries no benchmark figures and no pricing.
AI model-security company Alice raises $140 million at a reported $700–800 million valuation
Alice, the Israeli-American company formerly called ActiveFence, raised $140 million led by Apax Digital, with Samsung, SentinelOne, Maj Invest, MoreTech and Phoenix Insurance joining existing backers including Norwest, CRV, Vintage, Grove Ventures and Highland Europe, taking total funding to $280 million. Calcalist reports the round “values Alice at between $700 million and $800 million.” Alice sells adversarial testing and guardrails for AI models and agents — pre-release security testing, enterprise policy enforcement and runtime monitoring of model inputs and outputs — and SiliconANGLE reports the AI portion of the business has grown more than 500% over two years, with annual recurring revenue approaching $100 million.
OpenAI launches Daybreak, gating a cyber-tuned GPT-5.6-Cyber model to vetted security partners
OpenAI expanded its Daybreak cyber program into two partner-only access tiers: Blue, giving approved defenders access to general-purpose models including GPT-5.6 Sol with safeguards tailored to authorized defensive security work, and Red, giving access to purpose-trained cybersecurity models — a new GPT-5.6-Cyber, rated 'High' capability and below the Critical threshold — for authorized vulnerability research, exploit validation and security testing. OpenAI named SpecterOps, SentinelOne and Palo Alto Networks among the partners, who receive access to the models rather than only findings.