Advanced Persistent Threat (APT) 29 (also known as Cozy Bear, CozyDuke, the Dukes, or PowerDukes) is a Russia-based hacker group perhaps best known for its compromise of the Democratic National Committee in 2015 and for the SolarWinds intrusion of 2020. The group has links to the Russian government is highly technically skilled and capable of adapting to the defenses of the targets it chooses. APT29 often uses techniques and tools that have been identified in previous attacks.