SIM Swap Scams: How They Work and How to Lock Your Number

2026-11-08来源 dev.to BeginnersEnglish

A SIM swap scam happens when a criminal convinces your carrier to move your number to a SIM they control. Once they have it, SMS codes and account recovery messages go to them, not you.

Three takeaways

  • Add a carrier port-out PIN or number lock, so a stranger cannot transfer your number.
  • Move important accounts from SMS codes to an authenticator app or passkey.
  • If your phone suddenly loses signal for no reason, call your carrier from another device right away.

The full guide covers how the attack works, warning signs and recovery steps: SIM swap scams explained.

Related reading:

Originally published at Guru X Blog.

This article was written with the help of AI and fact-checked and edited before publishing.

原文:https://www.a8q9.cn/en/article/sim-swap-scams-how-they-work-and-how-to-lock-your-number-2f1749.html

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