Settings
Secure Folder
You can create a secure folder on your device to protect private content and apps from anyone who may be using your device. You must sign in to your Samsung account to set up and use Secure folder.
◌From Settings, tap 
Biometrics and security > Secure Folder and follow the prompts to secure content on your device.
Secure startup
You can protect your device by requiring a PIN, pattern, or password when your device is turned on.
◌From Settings, tap 
Biometrics and security > Secure startup and select an option.
Encrypt or decrypt SD card
You can encrypt your optional memory card (not included) to protect its data. This only allows the SD card information to be accessed from your device with a password.
1.From Settings, tap 
Biometrics and security > Encrypt or decrypt SD card.
2.Tap Encrypt SD card and follow the prompts to encrypt all data on your memory card.
NOTE Performing a Factory data reset on your device prevents it from accessing an encrypted SD card. Before initiating a Factory data reset, make sure to decrypt the installed SD card first.
Decrypt SD card
You can decrypt an optional memory card (not included) if it was encrypted by this device. You may want to decrypt the memory card if you plan to use it with another device or before performing a Factory data reset.
1.From Settings, tap 
Biometrics and security > Encrypt or decrypt SD card.
2.Tap Decrypt SD card and follow the prompts to decrypt all data on your memory card.
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