SIM swap attacks have emerged as one of the most devastating identity theft techniques. The attack: attackers gather personal info, call your carrier impersonating you, and request a SIM swap. Once they control your number, they receive SMS verification codes to access your accounts. Defensive measures: Contact your carrier and request a port-out freeze. Use an authenticator app instead of SMS for 2FA. Use a dedicated email address for sensitive accounts. Consider eSIM with enhanced verification. Monitor your phone for sudden loss of service — a dead phone is often the first sign of an ongoing attack. Regularly check financial accounts for unauthorized access.