What is SIM Swap?

Definition

A type of fraud where attackers transfer a victim’s phone number to a SIM card they control, allowing them to intercept messages and calls, including two-factor authentication codes.

Real-World Examples

An attacker uses a SIM swap to gain access to a victim’s banking app by intercepting two-factor authentication codes sent via SMS.

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Quiz

What does a SIM swap attack allow an attacker to intercept?

Messages and calls, including two-factor authentication codes.