Reply to post: Re: Luhn Check to Retrieve card details

TalkTalk downplays extent of breach damage, gives extra details

Andy france Bronze badge

Re: Luhn Check to Retrieve card details

The reason why you don't understand is that you don't understand Luhn codes. The Luhn code is a single digit appended to the number. Luhn codes are intended to catch common typos. They can detect/correct a single digit error or a pair of transposed digits but are not capable of supporting Hollywood style hacking magic.

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