Following allegations of denial of service (DDoS) attacks on multiple Russian government and state media websites, the official website of the Kremlin, Russian President Vladimir Putin's office, kremlin.ru, was down. The disruptions occurred as Ukraine's Vice Prime Minister announced the formation of a "IT army" to battle Russian cyber-attacks.
According to specialists at the cybersecurity firm ESET, a newly discovered piece of damaging malware was detected spreading in Ukraine on Wednesday, affecting hundreds of machines. Suspicion fell on Russia, which has been accused of hacking Ukraine and other nations on several occasions. According to Reuters, the victims included government institutions and a financial institution.
Last week, the United Kingdom and the United States said that Russian military hackers were behind a wave of DDoS assaults that temporarily took down Ukrainian banking and government websites prior to the Russian invasion. The charges have been refuted by Russia.
Anonymous, the nebulous online activist organization that originally gained international recognition almost a decade ago, has declared intentions to target Russia's online presence using Twitter accounts. Russia-related leaks and hacks ascribed to the organization have begun to circulate online, though the validity of the allegations, as with Anonymous and other hacker collectives, is difficult to prove.
It's fairly uncommon for freelance or politically driven hackers to join one side or the other in global conflicts; comparable acts occurred during the Arab Spring upheavals. According to Reuters, the Ukrainian government has issued a plea to the hacking underground to assist in its underdog battle.