Two-Factor Authentication (also abbreviated as 2FA) is a type of authentication where it authenticates combining the one factor authentication with another factor regardless of software or hardware. In this type of authentication, there’ll be a requirement where you need to present what you got that the server know before being authenticated. There are many 2FA products in the market now and also many types of 2FA products. A few of the popular one are PKI USB Token, OTP Token and also Smart Card. These hardware will provide another item of information that is needed in order to succeed the authentication.
Better Security. Having only One-Factor, attacker who knows your username and password can always authenticate themselves in until you change your password. It can also help out in preventing any brute force password attack. 2FA has already been a popular and famous requirement in any banking industry especially performing a banking transaction. Sometimes it can be inconvenient however, people still can accept the amount of inconvenience, owing to the poor security of having only one authenticating method. To learn more revealing tips about two factor authentication, explore this link; Minbox over WeTransfer.
Password cracking methods like keystroke logging, brute force attack, dictionary attack, etc are commonly and routinely used to gain unauthorized access to accounts. Net result: an online environment that relies exclusively on username-password authentication system isn’t secure anymore.
Two Factor Authentication Conundrum
Well, even though there are a number of type of 2FA product in market, each type of product works the same way where during any authentication, the user will be called upon to provide password, his/her username, and the second element here. The second factor is the random number generated with the device, for OTP type of 2FA. While for the PKI USB Token, it is to plug in the token and carry out a digital signature on the operation and then send to the server for verification. Any critical authentication shouldn’t work if the second element isn’t presented.
An example of Three-Factor Authentication here is fingerprint or facial scan. The third factor however is quite inconvenience to implement and it is extremely costly. Therefore, 2FA is the best so far in IT security juggling the balance of convenience and security. Do take note that 2FA is still vulnerable to Man in the Middle attack to certain types of 2FA product and Man in the Browser attack for all the 2FA product. You can refer to those two entries on the means to prevent from being attacked or hacked.