Neiman Marcus said its systems were breached in May 2020, in which the personal information of about 4.6 million customers could have been compromised, Ars Technica reports. Payment, login and contact information were all at risk. The retailer said it became aware of the incident in September 2021 and prompted customers to reset their passwords to gain access to their accounts. In 2014, there was a malware incident that compromised more than 1 million payment cards, of which 2,400 were used fraudulently. An investigation of the incident is continuing.