Multi-factor authentication is essential but there are many methods to choose from and some are not very secure. In this video I'll compare your options and rank them from best to worst so you can choose the best second factor to secure your accounts. 🛒 Links to YubiKeys (the authentication factor I use for my sensitive accounts). The links below are affiliate links, which means that if you make a purchase I may receive a commission. This doesn't affect the price, and helps support the channel. ➡️ YubiKey 5 NFC (USB-A version): ➡️ YubiKey 5 NFC (USB-C version): As an Amazon Associate, I earn from qualifying purchases More links and information at the following video. 📽️ How Passwordless Authentication Works 💬 *Follow* *Me* Video timestamps: 0:00 - Introduction & Different Authentication Factors 2:40 - Email Codes 3:35 - SMS (Text Message) & Phone Calls 5:07 - Push Notifications (App Prompt) 5:59 - Number (or Picture) Matching 6:44 - TOTP Apps 7:44 - TOTP Dongles 8:39 - Certificates & Smart Cards 10:37 - Man-in-the-Middle Attacks 12:48 - FIDO 14:22 - FIDO2 15:34 - Summary #CyberSecurity #MFA #2FA #FIDO #Passwordless