5 ways 2FA can fail — and what you can do to protect yourself
2FA is only strong when you use it appropriately
A system that uses two-factor authentication (2FA) requires two methods of verifying your identity before it accepts a login. The most frequent use of 2FA is for logins that require an email/password combination and a code sent via SMS or email. Once you enter the code alongside your email/password combination, the system lets you in. It's simple, but devastatingly effective, as hackers can't access a 2FA-protected account even if they have the relevant email and password. So, in the case of a data breach of passwords, an account protected by 2FA would still be safe.
