Sometimes we capture private moments that we don't want to share with others. The best way to ensure the security of these photos is to hide them inside a password-secure vault. If you use Google Photos, go to Library > Utilities and set up the Locked Folder. You can also use the Secure Folder feature on Samsung Galaxy phones to create a locked folder to store your private photos and files. You'll find this feature in the Biometrics and security section of the Settings app.