![]() ![]() Check Washing can be deterred or prevented by using checks manufactured on Signature Paper, which stains PERMANENTLY when chemically washed.The encrypted barcode DOES NOT prevent check washing.Checks presented with a duplicate (replicated) barcode are rejected. Each barcode is unique and can only be used (presented for payment) ONE time.The bank needs to install the decryption software onto their system.If the data does not match, or if a check without an encrypted barcode is presented for payment, that check is instantly identified as potentially counterfeit and is investigated further by the bank, and potentially returned. (*We will not explain what "probably" means on this website.) If the data matches, the check probably* is not counterfeit and the check is allowed to pay. The bank's decryption software scans the check face, "reads" the barcode data and compares that data to the pre-printed information on the check. How it works: A check with a pre-printed encrypted barcode is presented for payment against a bank account previously identified by the bank as a "barcode" customer. The barcode on every check is unique because the number on every check is different. The barcode is embedded with the account number, check number and account holder's name. An encrypted "secure" barcode (illustrated above) pre-printed on handwritten checks is an exciting new innovation.
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