 Tom here from Warren systems and to TP is a great way for having second factor authentication It doesn't require any actual online Connection it works off of knowing a shared secret and the common Agreement on what time it is. That's an important thing about how to TP works I've got videos now linked down below where I've talked about how it works. It's not hard to look up the documentation It's an open protocol. It's easy to implement it It's widely implemented and Google Authenticator is a really popular way to store this on your phone Except I don't use Google Authenticator because he didn't have a way to back up But then Google Authenticator updated and he finally Finally have backups except, you know, didn't take long for security researchers to look at it and go Hey, where's the encrypted vault? This is a huge problem in my opinion Google did address it in a tweet back and forth that said they plan on a future where they fix this Well, I live in the reality of here and now where that's not fixed Therefore it's still not something I'm going to recommend Unless you're not that security conscious You're not as worried about someone getting into your Google account and copying all those codes I would worry about that and that is kind of a problem for me. This is why I use Aegis AEG IS It is a free and open source app that can run on your Android phone. It's available in the Google Play Store It's available on f droid. You can silo it if you want. Sorry iPhone users It's not available for you. But if you're using an Android phone Aegis is an excellent app It has no tracking or ads the vault is encrypted with AES 256 GCM And can be unlocked with either password or biometrics the encrypted vault can be backed up But encrypted vault can be backed up. That's an important phrasing I used on there So it's not just backing it up. You set a password to encrypt it and then you can back it up That's really important because if you're not backing it up and someone gets a hold of that vault They now have all your TOTP now. It has a couple are really cool features It's obviously an app that's going to support your standard HOTP and TOTP But it also has the ability to take a QR code and reproduce it So you can scan like you do with other apps you can put the code in manually But the ability to reproduce the QR code to me is just really clever because this allows you to Let's say share it with a friend and you're probably thinking why would you share TOTP with a friend? Well, that's actually a really interesting use case that comes up a lot more than you think because some apps may not have multi-user setup But let's say you would like to share a password in your favorite password manager mind being bit warden And then have that to TOTP somewhere That's not bit warden and you didn't have that person there to scan the QR code on the screen when it was produced Well, then you can share that with another person right from the app I just think that's kind of a neat feature and obviously it's up to you to want to do this It's not like it just shares automatically, but it's a really simple app I didn't want to just come here and dump on Google Authenticator and then not offer you a solution is why it's just ages But I still think Google Authenticator probably has a use case for people who are more of the average user But I think a lot of people to follow my channel are probably more security conscious and you might be interested in app like ages Nonetheless, that's all I have to say. I'll leave links to the things I mentioned down below Of course the ages app itself their github You can you know look through all the source code being that it's open source and I'd like to hear your comments That may be your favorite app that you use for TOTP Nonetheless, leave your comments down below or head over my forums for a more in-depth discussion Also, like and subscribe and do all those fun things because it definitely helps me out and getting my videos out there and helps the YouTube algorithm. Thanks