What is SIM swapping and how can I prevent it?

SIM swapping, also known as SIM hijacking, is a cyber attack where an attacker convinces a cellular provider to switch someone’s phone number to a SIM card under the attacker’s control. This allows the attacker to receive calls, messages, and authentication codes intended for the victim. To prevent SIM swapping attacks, it is recommended to take the following measures:

1. Enable a PIN or passcode for your SIM card: Most cellular providers offer the option to set a PIN or passcode that is required to make changes to your account or transfer your phone number to a new SIM card. Make sure to set a strong and unique PIN to protect your phone number.

2. Contact your cellular provider: If you are concerned about SIM swapping attacks, reach out to your cellular provider to inquire about additional security measures they offer, such as account PINs, security alerts, or extra verification steps for account changes.

3. Monitor your accounts: Regularly review your financial accounts, email, and other online accounts for any unusual activity that could indicate someone is trying to access your information. Report any suspicious activity to your service providers immediately.

4. Be cautious with personal information: Be careful about sharing personal information online or over the phone, especially details that could be used to verify your identity with cellular providers, such as your date of birth, address, or social security number.

By taking these precautions, you can reduce the risk of falling victim to a SIM swapping attack and better protect your personal information and accounts.