SolarWinds Hackers Remained Hidden in Denmark’s Central Bank for Months

Russia-linked threat actors compromised Denmark’s central bank (Danmarks Nationalbank) and remained in its systems for months. The security breach is the result of the SolarWinds supply chain attack that was carried out by the Nobelium APT group (aka APT29, Cozy Bear, and The Dukes). The intrusion was revealed by the technology outlet Version2, which obtained official documents from the Danish central bank through a freedom of information request. “Some of the world’s most sophisticated hackers have had an IT backdoor at Denmark’s Nationalbank for seven months. Denmark’s Nationalbank itself cannot rule out that the suspected Russian state hackers have abused the back door to further…