One such option is to encrypt your entire device. This means that every time you power your phone on, you'll need either a numeric pin or password to decrypt the device. An encrypted device is far more secure than an unencrypted one. When encrypted, the only way to get into the phone is with the encryption key.
Encrypt Your Samsung Galaxy S 4 - dummies Next, after you encrypt your phone, you can never switch your phone back to non-encrypted. With the Screen Lock options, you can use a PIN for a while, and then switch back to the pattern if you want. Not so with the encryption option. You will never, ever, ever, ever, get it back together. Android's factory reset has a security problem. Here's how May 26, 2015 How to Wipe Your Android Phone or Tablet Properly
On your iOS device, go to Settings > General > Reset. Tap Reset All Settings and enter your iOS passcode. Follow the steps to reset your settings. This won't affect your user data or passwords, but it will reset settings like display brightness, Home screen layout, and wallpaper. It also removes your encrypted backup password.
How to encrypt Android or iOS devices and stay protected
Encrypt Android device for Intune | Microsoft Docs
Aug 30, 2011 How to Encrypt your Android phone or tablet Secondly, when you encrypting your Android device you are likely to lose data on your phone or tablet. This happens when you phone goes off in the process of encrypting data. Therefore, to be on the save side you always need to ensure that your battery is half charged before encrypting your Android device. Don't Be Silly. Lock Down and Encrypt Your Smartphone | WIRED The only downside is that whenever you do turn on your phone with encryption, it'll take an hour to decipher all your information. With iOS, just having a passcode turned on on your phone encrypts A Comprehensive Guide on How to Encrypt an Android Device Jun 15, 2020