PANews reported on May 2 that according to CoinDesk, Internet giant Google is upgrading its Wallet service with a privacy focus. The upgrade uses zero-knowledge proof (ZKP) technology for age verification, which allows users to confirm their age without sharing their date of birth, and uses a blockchain-based approach for security verification. It is reported that the feature is now available in Google Wallet and can be run on mobile devices and applications using Google's digital credential API. Bumble will become one of the first companies to use Google's system to verify user age without disclosing personal data.