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Attackers have managed to exfiltrate personally identifiable information (PII) of about 4.6 million customers of popular American department store chain, Neiman Marcus (NM), the company has revealed.
NM has roped in the cybersecurity experts at Mandiant to examine the impact of the breach, which reportedly occurred last year in May 2020, according to initial investigations.
Even as the company is investigating the scope of the breach, it believes the attack wasn’t the same for all customers, with some losing more information than others.