2FA (two factor authentication) and why it’s important to you.
Two factor authentication is important because it gives you a little bit more say in who is logging in to your accounts. As in it lets you know immediately and asks your permission for them to be logged in.
When someone goes to log into an account most systems ask for the obligatory Username and Password and then they’re granted access. With 2FA after they put that info in a third request is made by the system. This third request is in the form of either an email request or text request saying something such as “we have a request from this device is it you and do you give permission”, or possibly ” we have someone trying to log in from such device here is a pin to type in on that device”.
If you receive this and it’s not you, you know that John Doe somewhere else has figured out your login info and it’s time to change that 1234 password to something a little more obscure and it’s time to possibly go through a few other accounts you have and change the passwords to maybe something a little more secure ( like your favorite 16 + long alpha-numeric symbol string ) plus add some 2FA to those accounts. (I’d recommend not waiting for that kind of thing to happen to change passwords though, make sure you’re being secure.)
It may seem like a lot of work and sometimes you type in your password the second time with frustration in your eyes but it does help a lot in making you safer online.