Facebook uses robust end-to-end encryption and server-side permissions to protect user data. When someone sets their profile to private, the images are not just hidden; they are restricted at the database level. No third-party website or "viewer" can simply flip a switch to see them without authorized access from Facebook’s own servers. The Truth About "Unlocker" Tools
Understand how to that is trying to steal data
Websites that promise to unlock private Facebook photos typically fall into three categories: