Samsung is preparing a major upgrade for the Secure Folder feature on One UI 8. According to recent leaks, the feature will switch to using Android's new programming interface called Private Space to improve privacy and security. Notably, Galaxy users will soon be able to register a separate fingerprint to open the Secure Folder without involving the main system.

On One UI 8, when setting up Secure Folder for the first time, users will be asked if they want to create a separate fingerprint. This fingerprint is only used to open the Secure Folder and does not appear in the system settings, where the list of regular fingerprints is displayed. If you try to add that fingerprint again in the General Fingerprint Settings section, the system will not recognize it.

Conversely, you cannot open the Secure Folder with fingerprints that have been registered in the system. This design protects Secure Folder from unwanted access, while ensuring that the unique fingerprint cannot be accessed or seen in any part of the OS.

This change is likely part of Android's ongoing push to further implement the Private Space API. While Secure Folder is already a separate, secure storage area, integrating it with Android's core security platform would further secure sensitive data.

Sources say Samsung could start testing One UI 8 for the Galaxy S25 in select markets as early as this month. An expanded beta could arrive in June, with a stable release expected in the next few months. With major changes like a unique fingerprint for Secure Folder, it's clear that Samsung is serious about improving security for Galaxy users.