Using 2-Step Authentication when logging into an account simply means that after you enter your password there will be a second step required to prove you are who you say you are.
It means that when you log into an online account, like your Google email account, they'll send a numeric verification code to your phone that you'll have to enter.
This makes hacking into your account almost impossible. Even if someone was able to obtain your password, they would also need access to your cell phone too.
With the increasing ease hackers seem to have finding passwords these days, if they have can gain access to your email account they can often gain access to all your other passwords, including those to banks and online stores.
The extra step required when logging might seem like a hassle at first, but it's far less of a hassle than dealing with the aftermath of a hacker that got access to all your online accounts.
Most online systems, including Google's G-Suite and Microsoft's Office365, can be configured to require 2-step authentication when logging in. Contact us to help you set that up.