The UK National Cyber Security Centre (NCSC) and international partners assess that APT29 is a cyber espionage group, almost certainly part of the SVR, an element of the Russian intelligence services. The US National Security Agency (NSA), the US Cybersecurity and Infrastructure Security Agency (CISA), the US Cyber National Mission Force (CNMF), the Federal Bureau of Investigation (FBI), Australian Signals Directorate’s Australian Cyber Security Centre (ASD’s ACSC), the Canadian Centre for Cyber Security (CCCS) and the New Zealand National Cyber Security Centre (NCSC) agree with this attribution and the details provided in this advisory.