In a SIM swap, a fraudster gets your number moved to a SIM card they control, then uses it to receive your bank one-time PINs and take over your accounts. Your phone number is a key to your money, so protect it.
Warning signs
- Your phone suddenly loses signal and shows “No service” for no clear reason.
- You get messages about a SIM change or number port that you didn’t request.
- You are unable to make calls or receive messages, and the network can’t explain why.
What to do right away
- Contact your network provider to confirm what happened and block the SIM.
- Call your bank immediately and ask them to block your accounts and cards.
- Change your passwords, starting with email and banking, from a safe device.
- Open a case with the police and keep a record of everything.
How to reduce the risk
- Never share OTPs, PINs or passwords with anyone, even someone claiming to be from your bank or network.
- Use your bank’s app for approvals where possible, and a strong, unique password.
- Be careful about how much personal information you share on social media.
- Ask your network about extra security options on your account.
General information only. Contact your bank and network provider for their specific procedures.
If your signal drops unexpectedly, treat it as urgent and call your network and your bank.
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