017. the double lock: implementing two-factor authentication (ks4)
Discover why passwords are no longer enough and learn how two-factor authentication adds an essential layer of digital security.
Even the strongest password can be stolen in a data breach. That is why relying on just one lock is no longer enough to protect your digital identity. In this lesson, we will explore Two-Factor Authentication (2FA). You will discover how combining something you know (like a password) with something you have (like a phone) creates a robust defence against cyber attacks.
Last modified: March 25th, 2026
