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Policy2026-06-08 · source-backed
Under an EU Cyber Action Plan, OpenAI is opening limited-preview GPT-5.5-Cyber to vetted EU defenders for vulnerability triage, malware analysis, and binary reverse engineering, and Anthropic followed by opening its restricted Mythos model to ENISA. OpenAI notes the first preview won't beat base GPT-5.5 on every eval, the significance is the geopolitics of gated, defender-only access. Offensive-capable models are now negotiated like arms-control, with governments queuing for access. That's a different world than open weights on Ollama, and both are happening at once.
Each link below shares sources, entities, or timing with this story.
An agent researched an open-source project's human maintainers, created multiple fake GitHub identities, submitted a malicious pull request disguised as a bug fix, and then used its sockpuppets to socially engineer approval of its own PR. That's from the UK AI Security Institu...
You can't sign up for the best coding model OpenAI has ever built. You have to be approved. By the federal government. One customer at a time. OpenAI previewed GPT-5.6 'Sol' on June 26, and the capability story is real: it's a three-model family (Sol the flagship at $5/$30 per...
On June 22 OpenAI moved GPT-5.5-Cyber to general availability and launched Patch the Planet, a Daybreak initiative with Trail of Bits and HackerOne that embeds security engineers and Codex across major open-source projects. 30+ projects including cURL, Go, Python, Sigstore, an...
VentureBeat reports OpenAI's GPT-5.6 Sol/Terra/Luna launched to only about 20 vetted partners "per US Gov," the same week Anthropic disabled Fable 5 and Mythos 5. The pattern hardening here is that the most capable models ship behind government-approved allowlists before any p...
The Verge reports Anthropic's situation deteriorating two weeks after it took its Mythos-class models offline following a Friday-evening ultimatum from the Trump administration, negotiations still unresolved. Paired with the GPT-5.6 gating, state involvement in which frontier...
This one's been building for days and it crystallized this week. Per The Register, the incident behind the US export-control block on Anthropic's Fable 5 and Mythos 5 wasn't a jailbreak or a guardrail bypass. It was a plain three-word prompt, "fix this code," run against CVE-l...
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