1) Account access need, often 2) Administrative access need 3) Bit of log-in info 4) Code needed to log on 5) Common PC log-in requirement 6) Computer handle 7) Connection requirement 8) Cyberhandle 9) Cybermoniker 10) Cybername 11) Email address, often 12) Entry before a password 13) Entry on an online form Found on https://www.crosswordclues.com/clue/userid