Two factor authentication

two factor authentication

What is two-factor authentication (2FA)?

What is Two-factor Authentication (2FA)? Two-factor authentication (2FA) is a security process that increases the likelihood that a person is who they say they are. The process requests users to provide two different authentication factors before they are able to access an application or system, rather than simply their username and password.

How do I Turn on two factor authentication on my phone?

1 Go to Settings > [your name] > Password & Security. 2 Tap Turn On Two-Factor Authentication. 3 Tap Continue. 4 Enter the phone number where you want to receive verification codes when you sign in. ... 5 Tap Next. 6 Enter the verification code to verify your phone number and turn on two-factor authentication.

What is a factor in authentication?

A factor in authentication is a way of proving that you are who you say you are when you try to sign in. For example, a password is one kind of factor, its a thing you know. The three most common kinds of factors are: Something you know - Like a password, or a memorized PIN.

How does SMS-based two-factor authentication work?

SMS-based 2FA interacts directly with a user’s phone. After receiving a username and password, the site sends the user a unique one-time passcode (OTP) via text message. Like the hardware token process, a user must then enter the OTP back into the application before getting access.

Why is two-factor authentication so important?

Looking at it from another angle, if a consumer uses 2FA correctly, websites and apps can be more confident of the user’s identity, and unlock the account. If a site you use only requires a password to get in and doesn’t offer 2FA, there’s a good chance that it will be eventually be hacked. That doesn’t mean that all 2FA is the same.

What is 2FA and why do I need It?

2FA is designed to prevent unauthorized users from gaining access to an account with nothing more than a stolen password. Users may be at greater risk of compromised passwords than they realize, particularly if they use the same password on more than one website.

What is a software token for 2FA?

Software Tokens for 2FA The most popular form of two-factor authentication (and a preferred alternative to SMS and voice) uses a software-generated time-based, one-time passcode (also called TOTP, or “soft-token”). First, a user must download and install a free 2FA app on their smartphone or desktop.

What is biometric 2FA and how does it work?

Biometric 2FA, authentication that treats the user as the token, is just around the corner. Recent innovations include verifying a person’s identity via fingerprints, retina patterns, and facial recognition. Ambient noise, pulse, typing patterns, and vocal prints are also being explored.

What is an authentication factor in security?

Authentication Factor. What is an Authentication Factor? An authentication factor is a special category of security credential that is used to verify the identity and authorization of a user attempting to gain access, send communications, or request data from a secured network, system or application.

What is the difference between an authentication factor and two-factor authentication (2FA)?

An authentication factor is a piece of information and process used to authenticate a persons identity for security purposes. Two-factor authentication (2FA), shown in Figure 4.27, is an authentication mechanism based on two pieces of information: something you have, such as a smart card, token id, etc. and something you know, such as a PIN.

What is an example of knowledge-based authentication factor?

Knowledge factors require the user to provide some data or information before they can access a secured system. a password or personal identification number (PIN) is the most common type of knowledge-based authentication factor used to restrict access to a system.

What is an example of multifactor authentication?

For example, using a smart card and a PIN is multifactor authentication since the two factors are something you have and something you know. However, if a user were required to enter a password and a PIN, it would not be multifactor authentication since both methods are from the same factor ( something you know ).

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