Using Your Apple Device as an Access Card: A Clever Hack Using a Chinese Transit Card

Many have tried using their Apple device as an access card, but the closed nature of NFC and Wallet ecosystems makes this difficult. However, a Chinese transit card called "China T-Union," officially supported by Apple Wallet, offers a clever workaround. Its unique properties – a non-randomizing UID and unchanging serial number across devices – allow it to be recognized by some UID-based access control systems. While UID authentication is less secure, some systems support it as a fallback. Obtaining the card requires an Alipay account and a biometric travel document. The method is slightly convoluted, but it provides a viable solution for access systems supporting UID authentication.