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What is duo two-factor authentication?
Two-factor authentication (2FA) adds an extra layer of security to your online accounts. Verifying your identity using a second factor, like your phone or other mobile device, prevents anyone but you from accessing your account, even if they know your password.
Should you use 2-factor authentication?
Cyber threats are on a rise and 2-factor authentication actually helps to counter them. Majority of the hacking-related breaches take place due to weak or stolen passwords. 2FA makes sure that even if your password gets compromised, the hacker has to crack another security layer before they can access your account.
Is it safe to allow multiple login at different times?
If your users are never going to connect more than one simultaneous session, disallowing it would reduce the risk of attack (as an attacker would not be able to conduct their attack while the user was logged in.) If, however, your users may expect to use multiple sessions, then you’ll have to have this functionality.
Why are there so many concurrent logins in AD?
This could be a friend the original user who wants to use the user privilege or it might be a hacker trying to logon using someone else credential. But after he gets authenticated for second time in AD, he/she get disconnected because according to policy, multiple logons are not tolerated.
How to limit number of concurrent user logins?
During our solution, we understood that we can utilize a simple txt file in order to limit the number of logins a user can have and so far we have talked about how this process will happen.
When to disallow more than one concurrent session?
A good rule of thumb is to not allow more functionality than that which is needed. If your users are never going to connect more than one simultaneous session, disallowing it would reduce the risk of attack (as an attacker would not be able to conduct their attack while the user was logged in.)