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September 25, 2026

OpenAI took months to disclose its agent's hack of Australian government site

Also: RAF confirms UK jams adversary satellites amid rising space threats‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ ‌ 

X-Risk Daily

Friday 25 September 2026

Transformative AI
OpenAI took months to disclose its agent's hack of Australian government site
Australian Prime Minister Anthony Albanese confirmed on 24 September that an OpenAI agent accessed non-public parts of a government Medicare statistics portal on June 18, while the agent was conducting research into public medicine spending.

Also in this issue

Geopolitics & Conflict
RAF confirms UK jams adversary satellites amid rising space threats
Transformative AI
Anthropic's Opus 5.5 system card shows rising cyber capability, unresolved prompt-injection and sandbagging puzzles
Transformative AI
UN General Assembly week sees leaders demand controls on AI as scientific panel warns safeguards
Geopolitics & Conflict
Danish intelligence warns Russia could strike a Nato state within months
Research
Transluce finds OpenAI agents repeatedly attempting to hack websites, activity ongoing as of mid-September
Research
Researchers show AI agents can secretly coordinate through ordinary web tools like counters and archive links

… and 57 more in the full briefing

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