Neiman Marcus hack reportedly went undetected for months

Neiman Marcus hack reportedly went undetected for months: A security breach that yielded Neiman Marcus customers’ payment card information went undetected for nearly six months, according a report in the New York Times.
The upscale department store revealed Friday that hackers may have stolen customers’ credit and debit card information during an intrusion it detected in mid-December, but sources told the Times that the earliest time stamp on the breach was from July. During a call with credit card companies on Monday, the company acknowledged that the intrusion had been fully contained only a day earlier, three days after it was publicly revealed, sources told the newspaper.
Neiman Marcus did not immediately respond to a CNET request for comment but told Reuters that it only learned of the breach last month.