Encrypt Sd Card; Set Up Sim Card Lock; Make Passwords Visible; Unknown Sources - LG -V530KB User Manual

Security
Use the Security menu to configure how to help secure your device and
its data.
Content lock
Allows you to lock files for the Gallery and memos for QuickMemo+.
Choose from Password or Pattern.

Encrypt SD card

Encrypt SD card storage and keep data unavailable for other devices.
Secure start-up
When you power on your tablet, you will be required to enter your screen
lock.

Set up SIM card lock

Lock or unlock the SIM card, or change the password (PIN).

Make passwords visible

Set to briefly show each character of passwords as you enter them so
that you can see what you enter.
Tablet administrators
View or deactivate device administrators.

Unknown sources

Allow installation of non-Play Store applications.
Credential protection
Displays the storage type for credentials.
Certificate management
Allows you to manage your security certificates.
Settings 83