Euro Zone Banks Face Risks from Wars, Cyberattacks, Supply Chain Disruptions

The European Central Bank (ECB) has conducted a stress test on euro zone banks to assess their resilience in case of acute stress. The test, known as a 'reverse stress test,' involved lenders coming up with scenarios themselves, rather than the ECB providing them. The top risks identified by banks included wars, supply chain disruptions, economic sanctions, macroeconomic confidence effects, political instability, and cyberattacks.

The exercise revealed that while banks' liquidity positions generally remained above regulatory minimum requirements under the various scenarios, some banks may fall short of foreign currency liquidity requirements. This is particularly concerning for those with structurally tighter foreign currency liquidity, which could lead to a 100% minimum liquidity coverage ratio breach.

Banks assumed that risks would be transmitted via the real economy, while financial markets would be a secondary channel. Military conflicts were deemed detrimental to agriculture, accommodation, and food services, while macroeconomic confidence effects and cyberattacks had a strong impact on manufacturing and transport.