ID

Satellite Five's computer determined via a security scan that the Ninth Doctor had no identification, not even a fake ID. (TV: The Long Game)
In their youth, Andy Lang bought fake IDs for himself and Frank, so that they could drink at the Village Inn. (PROSE: The Party in Room Four)
Meetings in Zoom had IDs. The ID used when Petronella Osgood and the Zygon Osgood had a call was "837-9623-5563". (WC: The Zygon Isolation)