iOS Settings

NOTE: Encryption is automatically turned on when passcode is set. More information can be found here.

1. On iPhone X and later, or iPad with Face ID, go to Settings > Face ID & Passcode. On earlier iPhone models, go to Touch ID & Passcode. On devices without Touch ID, go to Settings > Passcode.
2. Tap Turn Passcode On.
3. Enter a six-digit passcode, or tap Passcode Options to switch to a four-digit numeric code, a custom numeric code, or a custom alphanumeric code.
4. Enter your passcode again to confirm it and activate it.

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Android

NOTE: Before you begin encryption, the phone must be 80% charged and connected to the charger. All Pixel phones are encrypted by default. So are Nexus 5X, Nexus 6P, and Nexus 9 devices. You can choose to encrypt Nexus 4, Nexus 5, Nexus 7, and Nexus 10 devices. More information can be found here.

1. Go to the Settings App.
2. Tap Lock Screen.
3. Choose Screen Lock to set a PIN or Password (Skip this step if this is set).
4. Tap Secure Lock Settings.
5. Choose Lock Automatically to set the Auto-lock time (Choose a time that is 10 mins or less).
6. Go back to Settings
7. Tap Biometrics and Security.
8. Tap Encrypt Device (you may also need to "Encrypt SD card")
9. A 4 digit PIN or a password is required to be set, if not already set.

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Windows Phone 8 - 8.1 (Update 1)

When Active Sync is enabled on an existing Exchange account for Windows Phone you will be giving the following prompt:

"Create a new password"

Your phone's security policy has changed, so you'll need to change your lock screen password. Here are the new requirements.
Must have at least 4 digits
Select "Set" to add the password.

If you select "Set" you will be prompted to create a pin."

To verify that the device is encrypted on Windows Phone 8.1, please do the following:

• Go to Settings.
• Tap Storage Sense
• Under the Phone listing you should see the amount of storage used and the word "Encrypted".

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Windows 10 Mobile

Device encryption is an option that comes disable by default, but you can easily enable the feature using the following steps:

1. While in the Start screen, swipe left to bring All apps, then search for and open the Settings app, and tap on System.
   
   
2. Next, tap on Device encryption.
   
   
3. Finally, make sure to slide the Device encryption pill switch to the On position to enable the feature.
   
   

Important Note: A password PIN must be in place to enable the feature if your mobile device doesn't have one when trying to enable Device encryption, you will be automatically redirected to the Sign-in options settings page to create a PIN. Then you would just tap the Add button, under the PIN section, and follow the on-screen wizard to create a new PIN. After the PIN password is created, you can go back to Device encryption settings to verify that the feature has been enabled.

While the feature should work as expected, Windows Phone 8.1 used to display an "encrypted" label in the phone storage settings, and Windows 10 Mobile doesn't provide such visual confirmation in the storage settings. The only way to verify your device is being encrypted is by making sure the "Device encryption" is turned on in the Settings app.

It's important to point out that while encryption is enabled on your mobile device, the operating system and your data stored in the local storage will be encrypted, but device encryption will not encrypt data that you stored on an SD card unless you have build 15007 or later. As such, it's highly recommended that you not save sensitive data on a removable storage, as anyone could easily remove the storage and have unrestricted access to that data from any computer.

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