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SIM Swapping Fraud and How to Prevent It

Woman looking at her mobile phone to make sure she doesn't fall victim to a SIM swapping scam.


Imagine waking up one morning, eager to tackle your day, only to find your phone is unable to make calls or send texts. It’s a moment of disbelief that quickly turns to concern as you realize scammers have hijacked your phone number! This breach of security, known as a SIM swap fraud, is a growing threat. But what is SIM swapping? Let’s unpack how SIM swap fraud works, the dangers it creates, and how you can shield yourself from this scam.

SIM Card Definition:

A SIM card, or Subscriber Identity Module, is a small chip that slides into your device. It gives your phone the ability to connect with cellular networks. In other words, a SIM card is your phone's ID badge, responsible for allowing you to make calls, send texts, and use mobile data. Without this tiny chip, a smartphone is just an expensive gadget with no real functionality.

What is SIM Swap Fraud?

SIM swapping, also known as SIM hijacking, is a form of fraud where criminals trick your mobile provider into transferring your phone number to a new SIM card they control. Once they have power over your phone number, they can intercept calls, texts, and even SMS security codes. In the end, this breach grants scammers unauthorized access to your bank accounts, allowing them to make transfers, change your passwords, and more.

How SIM Swap Fraud Works:

  1. Information Intel: Fraudsters gather your personal information through phishing emails, social media research, or purchasing your info on the dark web.
  2. Impersonation: They contact your mobile carrier, pretending to be you, to report a lost SIM card that needs replacing.
  3. SIM Activation: Your phone carrier transfers your number to a new SIM card controlled by the scammer.
  4. Access and Exploit: With control over your phone number, fraudsters can bypass SMS-based security like two-factor authentication to access your bank accounts.

Dangers in SIM Swapping:

SIM swap fraud might sound like a plot twist in a thriller, but its reality is far more unsettling. Here’s why SIM swapping is a serious threat and what makes it so dangerous.

Likelihood of Identity Theft:

SIM swap scams present real dangers, especially when it comes to identity theft. Once fraudsters gain control of your phone number, they can impersonate you and infiltrate sensitive personal information, including banking details, social media accounts, and emails. This unauthorized access can result in legal issues, damaged credit, and an increased risk of more fraud in the future—especially if they use your personal data to establish new accounts using your identity.

Effects on Bank Accounts and Transactions:

As mentioned earlier, many banks rely on text-based two-factor authentication (2FA) for enhanced security. However, when scammers seize control of your SIM card, they can intercept these verification codes. This allows them to bypass security protocols and access your funds without detection. As a result, they can easily gain entry to your online banking accounts, making unauthorized transactions and transfers. This could lead to draining your bank accounts, maxing out your credit cards, and even securing loans in your name.

Access to Passwords and Online Accounts:

The most alarming part? Criminals can change your passwords and lock you out of your accounts, stripping you of control over your personal and financial information. This situation can make it very difficult for you to access mobile services such as banking, phone calls, email, social media, and more. Plus, the recovery process often includes having to prove your identity with multiple institutions, a process that can be both time-consuming and challenging.

Are You a Victim of SIM Swap Fraud?

One of the first signs of a SIM swap is when you lose the ability to send texts or make calls. If this happens, reach out to your mobile carrier immediately. Stay alert for any notifications from your mobile provider regarding unauthorized changes to your SIM card or phone number—these can be serious warning signs!

Unexpected account lockouts, particularly with online banking, can also suggest you might be a victim. And lastly, if you notice irregular transactions in your bank accounts, contact your bank right away to freeze your accounts and initiate an investigation.

Ways to Prevent SIM Swapping:

  • Create strong, unique passwords and PINs for banking apps and other sites, and avoid reusing passwords across different accounts.
  • Enable two-factor authentication (2FA) using apps like Google Authenticator instead of SMS for added security.
  • Regularly monitor your bank accounts for unusual activity and report it STAT.
  • Think about utilizing identity protection services such as Norton or LifeLock to monitor your accounts and notify you of any suspicious activity.
  • Exercise caution with phishing attempts and unsolicited requests for financial information. Always verify the source before disclosing any sensitive details.

How to Respond to SIM Swap Fraud:

  • Alert Your Mobile Carrier: If you receive a notification that a new SIM card or device has been activated on your account, contact your carrier immediately.
  • Freeze Your Accounts: If you suspect you’ve fallen victim to SIM swap fraud, contact your bank directly to freeze your accounts and stop any unauthorized transactions.
  • Update Your Passwords: Change passwords for all accounts, starting with email and banking. This also includes changing your security questions as well.
  • Report to Authorities: File a report with the Federal Trade Commission(FTC), the Consumer Financial Protection Bureau(CFPB), and your local law enforcement.

Armed Forces Bank Fraud Resources:

At Armed Forces Bank, safeguarding your financial security is our mission. Our dedicated team is here to help, offering resources and guidance to prevent fraud. Together, we stand ready to protect what matters most—your financial well-being.

If you suspect you are a victim to a SIM swap and can no longer access mobile or online banking, here’s how contact Armed Forces Bank for assistance:

  • Option 1: Visit afbank.com and click on the chat bubble in the bottom right corner. Request to speak to a banker, available Monday - Friday, from 8:00 AM - 10:00 PM, Central Time; AND Saturday, 9:00 AM - 5:00 PM, Central Time.
  • Option 2: Call the Armed Forces Bank Client Care Line at 888-929-2265, Monday - Friday, 8:00 AM - 7:00 PM, Central Time.

FINANCIAL EDUCATION: Scams & Fraud; Preventing ID Theft; Reporting ID Theft; Fraud Alerts & Freezes; Mobile Security Tips; Visa Card Security; EMV Chip Technology.

FRAUD-SPECIFIC RESOURCES: General Cybersecurity; Military Scams; Phishing Emails; Phone Scams; Text Scams; Pig-Butchering Scams; Elder Financial Abuse; Business Fraud; Tax Return Security.


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