Two-factor authentication; new guidance from the NCSC

Two-factor authentication (2FA) can help protect your online accounts, even if your password is compromised.

The basic idea is that two checks are needed, rather than just your password, to be doubly sure that it’s YOU logging in to your account…

The National Cyber Security Centre (part of GCHQ) are recommending the use of two-factor authentication to both private and business users, from small businesses right up to large organisations.

The purpose of two-factor authentication is to make attackers’ life harder and reduce fraud risks. If you already follow basic password security measures, two-factor authentication will make it more difficult for cyber criminals to breach your account.  Watch this short youtube clip to find out more about 2FA.

Authentication factors are usually:

  1. Something you know (e.g. password, PIN or answer to secret question)
  2. Something you have (e.g. your mobile phone or other device)
  3. Something you are (e.g. fingerprint / retinal scan)

Passwords on their own aren’t as infallible as we need them to be. Cyber attackers have the power to test billions of passwords combinations in a second.  So using a combination of factors when logging in makes things harder for them.  And more secure for you.

To summarise:

Add two-factor authentication (2FA) wherever possible to build another layer of security to your logins!

If you want to know more about how to do this, or any other aspect of computer security, have a look at our website to find out how we can help.  Or give us a call on 0114 287 0510.


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