Perhaps the largest security breach to date: TJX data breach: At 45.6M card numbers, it's the biggest ever
After more than two months of refusing to reveal the size and scope of its data breach, TJX Companies Inc. is finally offering more details about the extent of the compromise.
In filings with the U.S. Securities and Exchange Commission yesterday, the company said 45.6 million credit and debit card numbers were stolen from one of its systems over a period of more than 18 months by an unknown number of intruders. That number eclipses the 40 million records compromised in the mid-2005 breach at CardSystems Solutions and makes the TJX compromise the worst ever involving the loss of personal data.
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