Well, you post on a security forum about Linux so you 'extremist
'!
Joking aside, I don't understand what you mean lol?
You also have to consider they access to your computer and/or your password for Gmail is out there but without your YubiKey that would be worthless
.
Yes, but remember that my google session was saved, a malicious app, malware can steal the cookies saved in the browser, and if this happens even if your account has 2FA enabled, it will be useless in this scenario.
Since you do have YubiKeys you also have to consider they have somehow MiTM your security key to access your account. I must read up on exploits!
Yes, it is possible, nothing is 100% bulletproof.
Anyway, you have obviously caught the attention of someone, and you name is on a whiteboard. Intercepting YubiKey is no means feat at this stage.
I believe so, it leaves a question mark like this ? on the whiteboard is better, just be more aware.
One last thing you sure you didn't add a YubiKey and revoke it by yourself? Maybe fat fingered your phone in your pocket or something trivial?
No, my account already had YubiKey I never revoked. The curious fact that I never left my google account logged in my browser, only on my android phone. Now after this incident, I no longer leave it logged into chrome even on my computer, only once in a while I log in and let the history and bookmarks sync and then log out of the account and clear the cookies. I have been thinking that it may be MS EDGE that did this even though it is based on chromium, it was that feature that Microsoft added in EDGE to import the bookmarks, cookies from chrome every time you open Edge it always brings your chrome bookmarks, history, cookies, extensions up to date and my account was already logged into EDGE but had not logged into it, Edge automatically imported my chrome session from my google account. I believe google may have found it suspicious thinking it was a rogue app, it is a hypothesis, I don't know maybe I am wrong. I believe I will never know, what happened. I used all kinds of on demand scanners and found nothing. I even mounted the backup image and did a full scan and nothing was found. I even used autoruns, process explorer, process monitor, safe mode, safe mode with network, I went back and forth and found nothing suspicious, I assume it was not malware.