If you don't mind, maybe you can answer this question for me. I finally jumped on the Yubikey train recently, added a couple accounts, no problem. But then I noticed apparently I can connect my key to any random install of the authenticator app on any device, and it will show the accounts I have protected with that key.
To me, this means if I lose my key someone can learn a fair bit about who owned that key just from looking at the accounts on their own phone when they find it on the street. Now someone knows I have the account myname@someemailprovider.com (among others) when they didn't know that before. Etc.
I have googled unsuccessfully to find out if for some reason this is less of a problem than I feel like it is, or if it can be masked somehow, but my keyword choices must have been poor.
Do you have any opinion on this? I googled specifically if it would allow you to set a PIN to unmask that info or similar, but the PIN articles I found seemed to relate to something else.