the fraudulent appropriation and use of someone's identifying or personal data or documents, as a credit card.
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Origin of identity theft
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
British Dictionary definitions for identity theft
the crime of setting up and using bank accounts and credit facilities fraudulently in another person's name without his or her knowledge
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012