I have a 6 year old work ipad and we buy our own toner cartridges for our office printer. They're not buying anything. They put millions into door-swiping, staff-tracking security but we have playgrounds that don't have fences. Public education is super fucked up.

I’m a huge proponent of Yubikeys, and I use them every day. I use it for every account I have that supports non-resident FIDO2. I have my ssh keys set up on there so i can just sit down at any computer and ssh in to my remote servers without having to rely on being on a computer with its pub key already on the server. I use it for my pgp keys. I use it for TOTP on a few of my more sensitive accounts that don’t support anything better.

In addition to my regular w2 9-5 pen testing job I do pen testing as a contractor for a place like hacker one on steroids. I am forced to use Duo by them. Can’t use another TOTP app, can’t use a yubikey. While in most cases you can use another TOTP instead of duo, it is not always possible. That said, I highly doubt a school system has set up Duo in a way that prevents you from using alternate TOTP apps.