Russia has conducted “several” cyberattacks in Ukraine in recent weeks, but the level of hacking has still not been “what we had anticipated” prior to the war, Gen. Paul Nakasone, National Security Agency director, told lawmakers Tuesday.
The relatively muted Russian activity in cyberspace is due to defensive measures from the Ukrainians, “some of the challenges that the Russians have encountered, and some of the work that others have been able to prevent their actions,” said Nakasone, who also heads US Cyber Command, said at the House Intelligence Committee’s worldwide threats hearing.
US officials have watched and tracked “very carefully” three of four of the Russian cyberattacks in Ukraine, Nakasone said without elaborating.
US national security officials from multiple agencies have provided Ukrainian officials with cybersecurity assistance to track threats and recover from hacking incidents.
Before Russia’s full-scale invasion of Ukraine in late February, there were a series of cyberattacks that disrupted the websites of Ukrainian government agencies and, in other cases, wiped data from agency networks. The White House blamed Russia’s GRU military agency for the first set of website-disrupting cyberattacks that occurred in January. Moscow denied the allegation.
Washington has poured millions of dollars into bolstering Ukraine’s cyber defenses following a pair of alleged Russian cyberattacks in 2015 and 2016 that cut electricity in parts of Ukraine.