Unfortunately, text-based 2FA isn’t a fool-proof method of securing your accounts. Anew attack known as “SIM swapping”hit even the CEO of Twitter in 2019. Authenticator App for 2FA Another popular – and frankly more secure – method of 2-factor authentication makes use of what are known...
This key is typically provided as a QR code or a string of characters that the user scans or enters into the authenticator app. Storage: The secret key is securely stored on both the service’s server and the user’s device. 2. Time Synchronization Unix Time: TOTP relies on Unix time,...