For most people, it’ll save your MS account passkey in your Microsoft account. ・To set up a passkey on your phone, use your camera app to scan a QR code. For a security key (e.g., YubiKey or Google ...
These days, I'm very popular in Russia, Ukraine, Moldova, Bosnia-Herzegovina, and even Albania. At least, that's what it looks like based on this list of recent attempts to sign in to my Microsoft ...