G7 Plans War Games Simulating AI Attacks on Global Banks

Major financial authorities across the Group of Seven (G7) economies are preparing joint simulation exercises to test how the banking sector withstands artificial intelligence-driven cyberattacks. The planned war-gaming reflects mounting alarm among international regulators that automated threats could outpace conventional digital defences protecting critical financial infrastructure. Rather than waiting for hostile actors to deploy generative and autonomous tools against payment rails and core lending systems, authorities intend to subject major lenders to controlled, simulated strikes designed to identify operational blind spots before malicious actors exploit them.

When a retail bank suffers an IT outage, consumers notice at the supermarket checkout; when the digital plumbing connecting systemic lenders fails, the wider economy stalls almost immediately. Modern finance operates as an intricate web of digital ledgers, automated clearing houses, and third-party cloud providers. The prospect of cyber intrusions weaponised by artificial intelligence dramatically raises the stakes. Malicious tools can now scan for system vulnerabilities at unprecedented speeds and automate tailored breach attempts across multiple targets simultaneously. For ordinary account holders and businesses, the stability of daily transactions hinges on whether financial institutions can detect and contain synthetic breaches before a compromise cascades through the payments network.

For the European Union, which holds a seat at the G7 table alongside member states France, Germany, and Italy, the exercise lands on familiar bureaucratic terrain. Brussels has spent recent years rolling out the Digital Operational Resilience Act (DORA), an exhaustive rulebook designed to compel financial firms to withstand, report, and recover from systemic IT disruptions. In typical institutional fashion, what begins as an unnerving technological scenario quickly becomes a matter of standardised compliance audits and cross-border reporting templates. The G7 initiative aligns European supervisors with peers in North America and Asia, acknowledging that automated malicious code rarely pauses to respect single-market regulatory frontiers.

Financial supervisors across G7 jurisdictions will proceed with drafting the parameters and scenarios for the simulated attacks, evaluating how effectively institutions detect synthetic threats and coordinate cross-border incident containment. The findings will feed directly into upcoming supervisory standards and guide whether banks must reinforce capital allocations and IT oversight specifically for autonomous cyber risks.