2FA
Definition
Two-Factor Authentication (2FA), a cybersecurity protocol requiring two distinct verification factors—typically a password (something you know) and a time-based code from an app or SMS (something you have)—to grant access to an account, significantly reducing the risk of unauthorized entry.
Commonly abbreviated as '2FA,' this tech staple is the digital equivalent of needing both your house key and a secret handshake to get in.
Examples
I enabled 2FA on my banking app just in time—turns out my evil twin from the multiverse was one password away from buying a yacht.
Setting up 2FA felt like overkill until my roommate tried logging in with my credentials and got zapped by a digital force field.
My phone's 2FA code expired mid-login, turning a quick email check into a full-blown archaeological dig through notification history.
Hackers hate 2FA because it's like showing up to a password party only to find the bouncer demanding your phone too.