[davidmitchell2]

Yes, I just tested it with one my accounts that has NO recovery email address/phone. ONLY U2F key.

Select forgot password; the it asks Insert U2F Key. Then recovered. Yes, it may be that if one loses U2F key in Metro it is dangerous but some risk is always there. (i.e) how many times have you lost your key in your life? If more than one per year then keep one U2F at work and one at home.

[orblivion]

Cool I'll look into it, thank you.