Two-factor authentication, also known as 2FA, is an extra layer of security that requires users to provide an additional piece of information when logging into their accounts. This can be a code sent to a phone, a response to a security question, or a fingerprint scan. The idea behind 2FA is to make it more difficult for unauthorized users to access your account, even if they have your password.
One of the main benefits of 2FA is that it provides an extra layer of protection in the event that your password is compromised. If someone gets hold of your password, they still won't be able to log into your account without the additional piece of information that 2FA requires. This can help prevent identity theft and other types of online fraud.
Ross Brown adds ‘“ If you do nothing else to safeguard your business online you must apply 2FA or MFA wherever you are given the option. 2FA can prevent as much as 80-90% of cyber attacks and you have to ask yourself why the take up of 2FA is favoured amongst the Tech Industry – it’s because it works in protecting them.’’
There are a few different ways to implement 2FA. One common method is to use a code sent via text message or generated by an authenticator app. When you try to log into your account, you'll be prompted to enter this code in addition to your password. Another option is to use a security key, which is a physical device that you plug into your computer. When you try to log in, you'll be prompted to touch the security key to confirm your identity.
It's important to note that 2FA is not foolproof, and there are ways that it can be bypassed. For example, if someone has physical access to your phone or security key, they might be able to use it to log into your account. However, 2FA is still an important security measure that can help protect your accounts from unauthorized access. There are so many cyber breaches out there that you almost never know if your password has been compromised. What 2FA does is ensure that even if it is, you’re still safe.
In conclusion, two-factor authentication is an extra layer of security that can help protect your accounts from unauthorized access. It's an important tool to help prevent identity theft and other types of online fraud, and it's worth considering for any accounts that contain sensitive information.