AI exploit results prompt bank action, not proof of systemic loss

OpenAI reports that GPT-6 Astra met its critical cybersecurity threshold, scored 100% on ExploitBench and identified two previously unknown vulnerabilities during provider-run evaluations. ECB Banking Supervision has instructed significant institutions to submit AI-cyber action plans by October 31. These sources support heightened operational concern, but neither insurer surveys nor the ECB letter provides reinsurance contract wording proving broad systemic-infrastructure exclusions or evidence of system-wide bank-capital losses.