For some time, EU data protection authorities (DPAs) have recognized complex cross-border cases involving Big Tech firms are taking too long to investigate and resolve.

In April, members of the European Data Protection Board (EDPB) formally agreed to enhance cooperation in these cases. Earlier this month, the EDPB adopted a set of criteria to assess whether a cross-border matter might qualify as a case of “strategic importance” for closer cooperation—and how to proceed if it does.

Neil Hodge is a freelance business journalist and photographer based in Nottingham, United Kingdom. He writes on insurance and risk management, corporate governance, internal audit, compliance, and legal...