You can already buy a coffee with your phone, but soon you’ll be able to start a job or buy a house with your mobile device. That’s because digital compliance wallets enabling certificates and documents to be held by individuals on a smartphone are becoming a major new global trend. The EU and U.K. are piloting models that should be active within the next 12 months, some U.S. states are already using them, and the Australian government launched its Trust Exchange (TEx) for digital identity checks in 2024.

Ruth Prickett graduated from Cambridge University with a BA hons in History and has specialized in business and finance journalism for the past 20 years. She was editor of Financial Management, the magazine...