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TJX breach total: over 45.7 million card numbers stolen

covers the ongoing how did this happen question. “TJMaxx computer system intruders who stole 45.7 million credit cards. The **worm operated **undetected for at least 18 months, capturing credit card numbers, then __changing timelogs and moving data around to erase its tracks. Initial speculation suggested that the thieves had access to the retailer’s encryption __key. Now it may be that the program captured data before it was encrypted. If the latter, the ramifications are immense, as it means every single retailer’s credit card processing system is at risk.