Two-Factor Authentication (2FA) is a security process that requires two different forms of identification before granting access to an account. Typically, this means you need to enter your password and then provide a second piece of information, like a code sent to your phone or generated by an app. This extra step helps protect your accounts from unauthorized access, even if someone knows your password. By using 2FA, you add an additional layer of security to your online accounts, such as those for email, banking, or social media. This makes it much harder for hackers to gain access, as they would need both your password and the second factor to log in.