Hacking group known as APT28 stole $20m in a hack of Target Corp., the New York Post reported Wednesday.
The hack was first reported by Bloomberg, and it was confirmed by a Target spokesman, who said the company was aware of the report and investigating.
Target said it was investigating the reports.
Target’s stock was down 0.8% Wednesday.
Target also said the cyber attack was not related to any breach at the retailer.
The Post said the hackers gained access to its systems via a compromised website.
Target confirmed the breach.
The company said it is continuing to investigate the breach and will share further details as they become available.
Target has not identified the victims.
APT 28, also known as Cozy Bear, is a Russian hacking group that is suspected of breaching and stealing data from hundreds of companies and organizations in the past year.
Target reported the hack Wednesday to the U.S. Department of Homeland Security.
The attack came as the company is under scrutiny from Congress and industry experts for the attack on its website.
APD also has been accused of hacking the Democratic National Committee and other organizations.
APDT has also hacked into Target, according to Bloomberg, stealing credentials for its servers.
The hacks have been linked to the APT group, which is a front group for the Russian government.
Target, which has been battling cyberattacks from both Russia and China, said Wednesday that it will not be disclosing any more information about the breach, which took place last month.