G7 finance leaders have agreed to develop tabletop exercises focused on cyberattacks involving artificial intelligence, Reuters reported on Oct. 16, citing Japanese Finance Minister Satsuki Katayama and a Japanese finance ministry official who attended the meeting. The simulations are intended to test how authorities respond and whether existing protocols work. [1]
The reported plan is still at the design stage. The official told Reuters that G7 finance authorities would develop scenarios and use the results to revise response manuals. The report did not give an exercise date, budget, number of simulations or detailed attack scenario. Participation by private financial institutions was described as a possibility depending on the exercises, not as a confirmed commitment. [1]
The planned work would sit alongside the G7 Cyber Expert Group, a standing forum that coordinates cybersecurity policy among the G7 jurisdictions. The U.S. Treasury says the group conducts recurring incident-response tests and cross-border exercises. In May 2026 it completed a cross-border coordination exercise involving a large-scale cyberattack scenario. That earlier drill provides institutional context, but Treasury’s public material does not describe it as an AI-specific exercise or confirm the newly reported plan. [2] [3]
Testing coordination, not predicting an attack
A tabletop exercise lets officials walk through decisions and communications during a simulated incident without asserting that a particular attack has occurred. In a financial system, the value can be testing how agencies share information and coordinate across borders while banks, payment systems and markets face disruption. The exact design of this proposed exercise remains undisclosed. [1] [2]
The news comes as financial authorities assess how AI may change the speed and scale of cyber threats. But the reported agreement does not establish that AI was used in any specific attack or that the G7 has already tested a live system. The available details come from Reuters’ account of remarks by the Japanese finance minister and an unnamed official; a separate public G7 document specifying the new exercise was not available in the sources reviewed. [1]
The next meaningful update will be a published scenario, timetable or official exercise report. Until then, the plan signals coordination work rather than a completed test or new operational standard. [1] [2]