#4 · Solid account lock

AT&T review

AT&T's Wireless Account Lock lets account owners block SIM changes, number transfers and other account changes until they turn the lock off.

Our verdict: 5.8/10

Wireless Account Lock is worth enabling for every AT&T line. It is a single switch on a mass-market account, though, and offers no coverage if an attacker gets past it. High-risk users need more than one lock.

At a glance

Price
Included with AT&T plans
SIM swap coverage
None
Port-out safeguard
Wireless Account Lock (opt-in)

Key security features

  • Wireless Account Lock to block SIM changes and number transfers
  • Account passcode

Pros and cons

What we like

  • No extra cost
  • One setting covers several kinds of account change
  • Large nationwide network

What to weigh

  • Opt-in: off until you turn it on
  • Large retail and phone support footprint to social-engineer
  • No financial coverage for SIM swap losses

Score breakdown

CriterionWeightScore
SIM swap defense25%7/10
Port-out protection20%7/10
Loss coverage15%0/10
Privacy & data handling15%5/10
Network & travel10%9/10
Support10%5/10
Value for the risk5%9/10
Overall100%5.8/10

Scores follow our published methodology.

How AT&T compares with Efani

Efani ranks first because it layers three defenses that AT&T does not match together: an 11-layer authentication protocol on every account change, a mandatory 14-day cooling-off period before any port-out, and up to $5 million in coverage if a SIM swap succeeds anyway.

If you stay with AT&T, switch on every lock and PIN it offers, and move your important accounts off text-message codes to an authenticator app or passkey. Our SIM swap guide walks through each step.

Other services we ranked

Your phone number deserves more than a PIN.

Efani's SAFE Plan adds 11 layers of authentication, a 14-day port-out cooling-off period and up to $5 million in SIM swap coverage. No contract, and a 60-day money-back guarantee.