The government says that Russian Federation has been carrying out cyber attacks against USA government agencies and "critical infrastructure sectors" since "at least March 2016".
The US treasury secretary said there would be additional sanctions to hold Russian "officials and oligarchs accountable for their destabilising activities". Last month, the Trump Administration attributed the attack to Russian Federation, saying it caused billions of dollars in damage in Europe, Asia and the Americas.
The Russian embassy didn't respond to a request for comment.
USA officials have accused Russian Federation of staging an ongoing attempt to penetrate the energy grid as they unveiled a range of fresh sanctions over recent cyber-attacks.
"I have long argued Vladimir Putin is not and has never been Americas friend", said Sen.
The treasury announced it had sanctioned five entities and 19 individuals for cyber-attacks, including during the election.
For those designated, the sanctions freeze all assets under USA jurisdiction, and US persons are barred from engaging in transactions with them.
The sanctions fall under the Countering America's Adversaries Through Sanctions Act, which authorizes pushback against "aggression by the governments of Iran, the Russian Federation and North Korea".
Russia's deputy foreign minister, Sergei Ryabkov, says the Kremlin is responding calmly to the new sanctions and - in his words - "taking this in our stride".
The attacks have been going on since March 2016, targeting multiple USA government offices, as well as energy, water, nuclear and critical manufacturing companies.
"It is tied to USA internal disorder, tied of course to our electoral calendar", Ryabkov was quoted as saying by the Russian state news agency Tass.
The Trump administration announced Thursday it is enacting new sanctions on Russian Federation, including individuals indicted last month by special counsel Robert Mueller, in a sweeping new effort to punish Moscow for its attempts to interfere in the 2016 United States election.
In particular, the Treasury cited the NotPetya attack, a cyber-attack attributed to the Russian military on February 15, which it described as "the most destructive and costly cyber-attack in history", resulting in billions of dollars in damage across Europe, Asia, and the United States, and significantly disrupted global shipping, trade, and the production of medicines. "Of course, this administration has struggled to speak with one voice on Russian Federation, and the Kremlin will be focusing first and foremost on future signals that come from President Trump himself". The targets include officials working for the Russian military intelligence agency, GRU.
The GRU also was behind a June 2017 cyberattack, delivered through a mock ransomware virus dubbed NotPetya, which wiped data from the computers of banks, energy firms, senior government officials and an airport.
The company, and the man believed to be its financier, Yevgeny Prigozhin, were indicted by Mueller last month on conspiracy and other charges.
Among the sanctions targets is Yevgeniy Viktorovich Prigozhin, known as "Putin's chef".
"The Administration is confronting and countering malign Russian cyber activity, including their attempted interference in United States elections, destructive cyber-attacks, and intrusions targeting critical infrastructure", Treasury Secretary Steve Mnuchin said in a statement.
"The IRA created and managed a vast number of fake online personas that posed as legitimate USA persons to include grass-roots organizations, interest groups and a state political party on social media", the Treasury Department statement said.
The FSB is being sanctioned for the use of cyber tools in targeting USA officials "including cyber security, diplomatic, military, and white house personnel".
In addition to those included in Mueller's indictments, sanctions were slapped on two Russian intelligence agencies, the Federal Security Service and the Main Intelligence Directorate, as well as some of their employees.