PC Mag – A month after Neiman Marcus revealed a hack of customer credit and debit cards, Bloomberg Businessweek said the attackers set off the retailer’s security system about 60,000 times during their strike.
Between July and October 2013, hackers quietly collected card data via “sophisticated, self-concealing” malware installed on Neiman’s system, the company said in January. But the exploit took about eight months, Bloomberg said; the hackers were forced to reload their software daily, as it was automatically deleted from the retailer’s registers each day. That process also meant that the hackers often tripped hundreds of alarms, which were not detected by Neiman Marcus.
