Your phone number is more than just a way to call and text—it’s a digital identity key used for logins, banking, and authentication. If hackers steal it via SIM swapping, they can take over your accounts, impersonate you, and access sensitive data.
Here’s how to lock down your number with free carrier security features—because most people don’t even know these exist.
What Is SIM Swapping?
A hacker calls your carrier, impersonates you, and tricks support into transferring your number to their SIM card. Once they control it:
- They intercept 2FA codes (banking, email, social media).
- They reset passwords and hijack accounts.
- Your phone suddenly loses service—the only warning sign.
How to Stop SIM Swaps (By Carrier)
AT&T: “Wireless Account Lock”
Blocks SIM transfers & number ports
How to enable:
- Open AT&T app or log in online.
- Go to Profile > Security > Wireless Account Lock.
- Toggle ON and confirm.
Requires account manager access—use a strong password + MFA.
T-Mobile: “SIM Swap Protection”
Prevents unauthorized SIM changes & port-outs
How to enable:
- Log in to T-Mobile account (app or web).
- Go to Profile > Security > SIM Swap Protection.
- Enable the setting.
Only the primary account holder can change this.
Verizon: “Number Lock + SIM Protection”
Locks number transfers & SIM changes
How to enable:
- Open Verizon app or online account.
- Go to Account > Security > Number Lock & SIM Protection.
- Turn both ON.
Disabling it triggers a 15-minute delay (anti-hack safeguard).
Extra Protection Tips
- Never share verification codes (even if someone claims to be “support”).
- Use app-based 2FA (Google Authenticator, Authy) instead of SMS.
- Check for sudden loss of service—could mean you’ve been SIM-swapped!
Why This Matters
SIM swapping is rising fast—$70M+ stolen in 2024 alone (FBI reports). These free carrier locks are your best defense. Enable them now!
