Financial account takeovers frequently start with a criminal executing a SIM-swap attack at a cellular carrier retail store, hijacking the victim’s phone number and SMS verification codes.
FIDO2 biometric passkeys and physical hardware tokens (like YubiKeys) eliminate shared secrets entirely. Because passkeys are cryptographically bound to specific origin domains, they are mathematically immune to phishing sites.
Migrating your primary email and brokerage accounts to hardware-authenticated passkeys provides unbreachable defense against credential stuffing and SIM hijacking.