U.S. officials said late Friday that the Iranian hackers behind a wave of threatening emails sent to thousands of Americans earlier this month successfully accessed voter data.

The US Treasury imposed sanctions on Russia's Central Scientific Research Institute of Chemistry and Mechanics, the organization that exactly two years ago used Triton to attack Petro Rabigh refinery.

The indictment demonstrates the degree to which Western intelligence agencies have apparently been able to infiltrate the Russian intelligence to trace attacks back to specific agencies and operators.

Sanctions were levied against the GRU, a military intelligence agency part of the Russian Army, and two of its officers. The two GRU officers were identified as Dmitry Badin and Igor Kostyukov.

The Kremlin on Tuesday denied US claims that Russian military intelligence was behind cyberattacks targeting Ukraine's power grid, the 2017 French election, and the 2018 Winter Olympic Games.

The NSA warned that Chinese government hackers were taking aim at U.S. networks involved in defense, characterizing the threat posed by Beijing as a critical priority in need of urgent attention.

Russian activity involved reconnaissance operations, as per the UK NCSC. Targets included the Games' organizers, logistics services, and sponsors, the UK government said in a separate press release.

The financial leaders of the world’s seven biggest economies said some prominent strains of ransomware had been linked to groups that “are vulnerable to influence by state actors.

Four of the domains were used to create news outlets that appeared legitimate but the flow of 'news' articles and contents hosted by the websites were controlled by Iran's IRGC.

Unidentified spies have been quietly breaching Azerbaijani government IT networks and accessing the diplomatic passports of certain officials, according to new research from Cisco Talos.