What Are Fullz? Fullz is a term used by criminals to describe sets of stolen personal information that can be used to impersonate someone or to use their bank cards. Simply put, fullz are stolen identities or stolen credit card information. https://discreetpeople.com/product-category/other/buy-cvv-fullz-online/ The word comes from the word “full” in the sense of “full data” or “full credentials” and encompasses all the information a fraudster needs in order to impersonate someone to defraud a company, steal directly from the victim, or conduct illegal activity that will be attributed to the victim if they are caught.