ESMA Reviews Crypto Custody Risks After MiCA Transition

The European Securities and Markets Authority is turning its attention to crypto custody risks following the transition to the European Union’s Markets in Crypto-Assets framework. According to the source material, the regulator will assess custody providers’ key management, incident response practices and dependence on third-party technology providers.

The review matters because custody is a core part of crypto market infrastructure. Weak controls around private keys, poor incident handling or heavy reliance on outside technology vendors can create operational risks for companies that hold crypto assets on behalf of clients.

The focus also reflects how regulatory attention is moving from broad licensing and rule-setting toward the practical resilience of firms operating under the new framework. For custody providers, that means internal systems, vendor oversight and response procedures may face closer examination.

MiCA is intended to bring a clearer regulatory structure to crypto activity across the EU. As that transition advances, regulators are expected to look more closely at whether service providers can meet the operational standards required in a more formalized market.

For crypto companies, ESMA’s custody scrutiny signals that compliance is not limited to registration or authorization. Firms may need to show that the systems protecting client assets can withstand incidents and that third-party dependencies are properly managed.