
Universal 2nd Factor (U2F)
Universal 2nd Factor (U2F) is a security method that adds an extra layer of protection when logging into online accounts. After entering a password, you use a small physical device, like a security key, to verify your identity. This device connects to your computer or smartphone via USB, NFC, or Bluetooth. U2F ensures that only someone with both your password and the physical device can access your account, reducing the risk of hacking or unauthorized access. It’s a simple and effective way to strengthen online security without relying solely on passwords.