Two-Factor Authentication (2FA), also known as two-step verification, is a security process used to verify the identity of a user when they access a system, application, or online account. It adds an extra layer of security beyond the traditional username and password combination. The purpose of 2FA is to make it more difficult for unauthorized individuals to gain access to your accounts, even if they have obtained or guessed your password.

Here's how Two-Factor Authentication works:

Something You Know (Password): The first factor is the traditional username and password combination that you provide when logging into an account. This is something you know.

Something You Have (Token or Device): The second factor involves something you possess, such as a physical device or a temporary code. This can come in various forms, including:

a. Text Messages (SMS): After entering your password, you receive a one-time code on your mobile phone via text message. You then enter this code to complete the login process.

b. Authentication Apps: Many websites and applications support authentication apps like Google Authenticator or Authy. These apps generate time-based or counter-based codes that you must enter during login.

c. Hardware Tokens: Some organizations issue physical tokens that generate unique codes. Users must have the token in their possession to log in.

d. Biometrics: Some systems use biometric data, such as

fingerprint or facial recognition, as the second factor.

Authentication: To log in, you need to provide both factors correctly. This means that even if someone has your password (the first factor), they cannot access your account without the second factor.

Two-Factor Authentication enhances security in several ways:

It adds a layer of defense against password breaches and unauthorized access.
It reduces the likelihood of successful phishing attacks, as attackers would need more than just your password.
It helps protect sensitive information, especially in cases where financial or personal data is involved.
It offers an additional level of security for online services, including email, social media, online banking, and more.

Enabling 2FA is strongly recommended for all your online accounts and services, as it significantly improves your digital security and helps safeguard your sensitive information from unauthorized access.