(USA TODAY) -- Hackers who stole data for millions of credit cards and debit cards
used in Target stores removed encrypted data containing personal
identification numbers - but the theft isn't expected to compromise
cardholder accounts - the company said Friday.
"We remain confident that PIN numbers are safe and secure," said a statement issued Friday by Target spokeswoman Molly Snyder.
to the company, Target does not have access to or store the encryption
key within the company's computer systems. When a Target customer uses a
debit card in one of the company's stores and enters his or her PIN,
the number is encrypted at the keypad with a widely used security
program known as Triple DES, the company said.
The PIN data can only be decrypted when it is received by the company's external payment processor, Target said.
SEE ALSO: Answers to questions about the Target data breach
this means is that the 'key' necessary to decrypt that data has never
existed within Target's system and could not have been taken during this
incident," the company said, adding "the most important thing for our
guests to know is that their debit card accounts have not been
compromised due to the encrypted PIN numbers being taken."
proposed class-action lawsuits filed against the company in the wake of
the massive November-December data breach have alleged that thieves
might find a way to break the encryption and use the PIN numbers to
withdraw money from cardholders' bank accounts.
A Reuters report
earlier this week cited similar concerns and said an executive of at
least one major bank voiced fear that the thieves might make fraudulent
Target announced Monday that the Department of
Justice is investigating the data theft, which has been called the
second largest in U.S. history.
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