Apple develops Reference Image authentication function to verify the source of iPhone photos

Apple is developing new features to verify whether a photo is actually from an iPhone camera. Code for iOS 27 beta 5 shows that this feature, called Apple Reference Image, will use unique data related to the shooting camera hardware to verify the source of the photo. Preventing Fake Images The problem of synthetic images passing off as real photos is not new, but generative AI makes the situation even more urgent. Processes that once required professional editors to spend hours or even days can now be completed by simply entering a short prompt. Google developed SynthID to embed watermarks that are imperceptible to the naked eye in AI-generated images. Companies such as OpenAI have also adopted it. Meta is adding AI-generated content tags to Facebook, Instagram and Threads, but such systems are still limited in reliably identifying manipulated media. Authentication and Privacy In addition to adding metadata tags to images generated by Image Playground, Apple also developed Apple Reference Image with privacy in mind: Apple cannot read the original photo. The system will send the photos to Private Cloud Compute for authentication, and only certain sensor data and photo relay data will be sent back to Apple. The function is turned off by default. To enable it, you need to turn on Reference mode in "Settings > Camera > Reference Image", and the privacy prompt screen will be displayed. Only photos taken using this mode will contain source data that can be used for authentication in the future, while photos taken normally will not. Reference mode does not automatically authenticate. Users can choose to authenticate later. At that time, the original photos and related source data will be sent to Private Cloud Compute for verification, and Apple will assign a unique ID to the photos. If Apple determines that a sensor may have been compromised, it may deactivate the sensor to