You don't need this number when you change your phone number with AT&T. This guide explains what an AT&T transfer PIN is, where to find it, and how to use it when switching to a new carrier.

How to get your Cricket transfer PIN You can request a transfer PIN from Cricket Wireless through the carrier's website, the mobile app, or your mobile device. Requesting the transfer PIN through ...

This guide will take you through setting a safer PIN and password, as well as having face and fingerprint unlock set in your Android device for extra security.

Have a Motorola phone? Want to make it more secure? This secret PIN Scramble feature lets you do precisely that.