I use Google's two factor authentication to send my phone text messages with a string of 6 numbers every time I log into a computer that isn't mine. It has worked well so far until today.
Today, I took too long to enter the code, which would be fine normally... except I clicked through faster than I should have and realized shortly after that the "trust this computer" box was checked the second time through. I took a look through the options for my Google account and saw no obvious place to revoke the trust.
This is absolutely not a computer I want trusted for any extended amount of time.
How do I untrust a computer from Google's two-factor authentication?