Apple's iCloud Private Relay feature is altering the landscape of fraud detection by masking users' true IP addresses and locations, which challenges traditional IP-based fraud prevention models. This privacy tool encrypts traffic and routes it through two relays, with one stripping identifying information and the other assigning a new IP address close to the user's location. As a result, websites see generic Apple relay IPs instead of users' real ones, complicating the use of IP geolocation and reputation scores for fraud detection. Fraud prevention teams need to adapt by employing updated methods such as maintaining Apple’s IP range lists, using behavior-based detection, and leveraging device intelligence platforms like Fingerprint to differentiate between regular and Private Relay traffic. The shift calls for more nuanced, multi-layered detection systems that can discern legitimate privacy use from fraudulent activities, thus preventing the unnecessary flagging of genuine users while still deterring fraudsters.