As for the impact of that decision, the Treasury Department surmises: "As a result of today's action, all property and interests in property of the designated persons subject to United States jurisdiction are blocked, and U.S. persons are generally prohibited from engaging in transactions with them".
The Treasury Department on Monday sanctioned five Russian entities and three Russian individuals for helping Russia build up its offensive hacking prowess, targeting them as part of an continuing effort to deter Moscow's aggression in cyberspace, USA officials said.
US officials said Divetechnoservies procured underwater equipment and diving systems for Russian government agencies. Treasury said that Russian Federation has been active in tracking undersea communication cables, which carry the bulk of the world's telecommunications data.More news: Trover Saves the Universe arrives early 2019 for PlayStation 4 and PSVR
The Russian companies affected are: Digital Security and its subsidiaries ERPScan and Embedi; Kvant Scientific Research Institute; and Divetechnoservices. The three sanctioned men are Aleksandr Lvovich Tribun, Oleg Sergeyevich Chirikov, and Vladimir Yakovlevich Kaganskiy.
"The administration is confronting and countering malign Russian cyberactivity, including their attempted interference in US elections, destructive cyberattacks, and intrusions targeting critical infrastructure", Mnuchin said. Hacks in the runup to the United States presidential election in 2016 are also linked to Russian Federation. Unfortunately, it is owned by a Russian company that has worked with the FSB to actively exploit similar holes, according to the Treasury department.
"The United States is committed to aggressively targeting any entity or individual working at the direction of the FSB whose work threatens the United States", Mnuchin said.
No mention of Russian attacks on US elections was mentioned in the press release.More news: US Federal Reserve raises interest rates
Digital Security is one of Russia's leading information security consulting companies, and its sole owner, Ilya Medvedovsky, is known as the author of several new ways of attacking network protocols and two books: "Attack on the Internet" and "Attacking Through the Internet".
The new sanctions also target Russian underwater capabilities.
Updated An expansion of sanctions on companies connected with Russian government cyberattacks has pulled in two United States tech companies.
"Some of our research team were former members of Digital Security", Donald Anderson, the company's head of marketing, told i24NEWS when reached by phone.More news: Achilles the cat becomes official soothsayer for Russian World Cup