What's a good Android app to use if you're worried about someone getting into your online accounts, especially after, uh, a falling out with someone who knows your passwords?

Alright, so, I'm not the most tech-savvy guy, but even I understand the need for security these days. One of my students, bless her heart, explained this to me. Apparently, ID.me Authenticator is designed to give you an extra layer of protection, what they call 'two-factor authentication.' Basically, even if someone has your password – say, a disgruntled ex-girlfriend, from that review I saw – they still need something else, like a code from your phone, to actually get in. It took me a few days to figure out all the ins and outs (why do they hide the settings button there?), but once you get the hang of it, it's surprisingly intuitive. It's like having a teaching assistant in your pocket, making sure no one sneaks into your virtual 'classroom' uninvited. And honestly, in this day and age, with all the scams and whatnot, it’s probably a good idea to have something like this. I even used it to protect my IRS account after seeing that review!