To access this awesome feature, go to your Settings app and scroll down to Biometrics and security. From there, tap on Secure Folder and follow the prompts to set it up. You'll need to sign in with your Samsung account or create a new one if you don't have one already.
Once you're all set up, you can start moving your sensitive files and private apps into the Secure Folder. This will keep them safe from prying eyes and protect them with an extra layer of biometric security, like your fingerprint or face recognition.