Hacked Accounts
Protect Your Phone Number
Make it harder for someone to move your phone number to their own phone or carrier. This Guide shows how to add a PIN or password to your phone account, turn on your carrier's protections, and spot the warning signs.
Is this Guide for you?
You want to protect your mobile number before someone tries to take it over. A scammer who moves your number to their own phone or carrier, called SIM swapping or port-out fraud, can receive your texts and calls, including sign-in codes for your bank and other accounts.
This Guide helps you
- Add a PIN or password to your phone account
- Turn on your carrier's number and SIM protections
- Get alerts about changes to your important accounts
- Know the warning sign that your number was moved
You'll answer 1 short question. Then you'll get a plan with the steps in order. Your answers stay in this browser tab. They aren't saved, and they aren't sent to Defend.
Based on guidance from Federal Communications Commission, AT&T, Verizon and T-Mobile. Sources last checked October 24, 2026.