2FA – Two-Factor Authentication is a security method used to protect online accounts and systems by requiring two forms of identification before granting access. These factors help ensure that only authorised users can access sensitive information, adding an extra layer of protection beyond just a password.
Here’s a simple breakdown:
- Factor 1 – Something You Know: This is typically your password or PIN. It’s the first form of identification, which alone might not be enough to keep your account secure.
- Factor 2 – Something You Have or Are: This could be a temporary code sent to your phone via text message (SMS), a push notification from a mobile app, or even a fingerprint scan. This second factor verifies that it's really you trying to access the account.
Why Use 2FA? Even if someone steals your password, they still need the second factor (like your phone or fingerprint) to get into your account, making it much harder for attackers to succeed.
Think of 2FA like having a lock on your door and then adding a second layer of security, such as a key card, to make sure only authorized people can enter. It’s an extra step that keeps your accounts safer.