ECB Warns Eurozone Banks to Strengthen AI-Era Cyber Defenses

The European Central Bank’s outgoing vice president, Luis de Guindos, has urged eurozone banks to increase investment in cybersecurity as artificial intelligence reshapes the threat landscape facing the financial sector.

The warning centers on the growing capability of new AI models, including Anthropic’s Mythos, to identify software vulnerabilities. That poses a structural challenge for banks, many of which continue to rely on legacy systems that can be difficult to secure against rapidly evolving attacks.

The ECB has been assessing banks’ preparedness and is pressing institutions to strengthen defenses and commit more resources to cyber resilience. The message reflects rising concern that AI tools could accelerate both the discovery and exploitation of weaknesses in financial infrastructure.

The report appears in developing May 28 coverage, a period that includes direct May 28 publications and late May 27 reports with implications for the current day.