Why Passwords Alone Are Not Enough

This lesson explains why passwords, even strong ones, are not enough as the only protection for modern accounts. Learners examine the practical weaknesses of passwords: reuse, phishing, credential stuffing, database breaches, malware, social engineering, and poor recovery flows.

The lesson introduces the core security idea behind multi-factor authentication: requiring proof from more than one category makes account takeover harder when a password is stolen or guessed. It also sets realistic expectations: MFA is a major improvement, but different MFA methods offer different levels of protection and usability.