From FinCEN advisory "FIN-2016-A005": A UEI is defined as gaining access to a computer system of a financial institution to: a) remove, steal, procure or otherwise affect funds of the financial institution or the institution's customers; b) remove, steal, procure or otherwise affect critical information of the financial institution including customer account information; or c) damage, disable, disrupt, impair or otherwise affect critical systems of the financial institution.
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CAMS