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Letter: Gary Calder responds to an article by a Guardian Money reader who got even by stringing the fraudsters along
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Money — The Guardian
Anyone wishing to get their own back on bank-card scammers using the method described in your article ( ‘I’ve £80k in the account, here’s my pin’: turning the tables on the scammers, 29 August ) might like to add a touch of realism to a made-up bank-card number by picking a known issuer identification number (the first six to eight digits) and ensure that the last digit conforms to the Luhn algorithm (it’s a check digit used to pick up errors in entering all the other digits). Further fun could be had by choosing an interesting postcode, such as SW1A 2AA (or 2AB – 10 and 11 Downing Street), SW1A 2JL (New Scotland Yard) or SL4 1NJ (Windsor Castle).
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Source: The Guardian. Published 4 Sept 2026, 04:54 pm.
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