AI Shield for Finance: OpenAI Grants Japanese Banks Access to GPT-5.5 Amid EU Alarm

The global financial system is shifting to algorithmic defense. On May 29, 2026, it was revealed that OpenAI granted a pool of Japanese banks exclusive access to its newest model (GPT-5.5) specifically to defend against cyberattacks. The information was confirmed by Japan’s Financial Services Agency (FSA).

Simultaneously, the Bank of Italy (Banca d’Italia) announced the initiation of direct consultations with global AI developers regarding infrastructure security. This coordinated response from regulators is a reaction to Google’s recent publication about the generation of 0-day exploits by artificial intelligence. Classic security systems (SIEM) and compliance protocols have proven powerless against the speed of machines. Central banks have realized the harsh reality: only even more advanced neural networks can repel attacks from autonomous AI agents probing for vulnerabilities in banking code. The industry is moving to an "AI vs. AI" concept at the level of national economies.

Source: Reuters / FSA Japan / Banca d’Italia