2FA, SMS, and you
2-Factor Authentication (2FA) or Multi-Factor Authentication (MFA) are ways of securing accounts above and beyond normal password protection. Typically, we think of 2FA as something you know (your password) and something you have (a device). The idea is that if you compromise one, you still can’t get access to the protected resource. A room protected by a keypad and ID card reader is a great example of 2FA. You might be able to guess the code, but you’d also need a valid ID card to get access to the locked room....