Carrier Resources
For the most up-to-date information, visit your carrier's official documentation:
While carrier links may change over time, we maintain detailed instructions below.What is SIM Swapping?
SIM swapping is a dangerous attack where criminals convince your mobile carrier to transfer your phone number to a new SIM card they control. Once successful, they can:
- Intercept your two-factor authentication codes
- Reset passwords for your accounts
- Access your banking and financial services
- Impersonate you to friends and family
Essential Protection Steps
- Add a PIN to your carrier account
- Don't use SMS for two-factor authentication when possible
- Use authentication apps instead of text messages
- Be cautious of unexpected calls claiming to be from your carrier
Carrier-Specific Instructions
Verizon
Verizon SIM Protection
Verizon offers a free security feature called SIM Protection that blocks unauthorized SIM transfers. Here's how to enable it:
- Sign in to My Verizon
- Select "Edit Profile and Settings" under Welcome and Your Name
- Scroll to find the Security Menu
- Select "SIM Protection"
- Toggle protection ON for each phone number you want to protect
Important Note
When you disable SIM Protection, there's a 15-minute delay before any SIM-related transactions can be completed.
AT&T
AT&T offers extra security features for wireless accounts that haven't been combined with AT&T Internet or U-verse® TV accounts. Here's how to enable it:
- Sign in to your myAT&T Profile
- Scroll to My Linked Accounts
- Select "Manage extra security" for your wireless account
- Turn on Extra security and enter your passcode
Important Note
This option is not available for business accounts. Visit AT&T's security guide for more details.
T-Mobile
T-Mobile offers SIM Protection to prevent unauthorized SIM swaps. Here's how to enable it:
- Log in to your T-Mobile account
- Select your name drop down in the top, right corner
- Select Profile
- Select Privacy and Notification
- Select SIM Protection
- Move toggle to enable/disable SIM Protection for entire account
- Move toggle to enable/disable SIM Protection for individual lines
- Select Save Changes
- Select Continue