Ukraine’s military intelligence agency (HUR) on July 29 carried out a cyberattack against the Russian central bank, a source in the agency told the Kyiv Independent. This appears to be only the most recent step in an ongoing cyber campaign, which began on July 23 and affected several top Russian banks, including Gazprombank, VTB, Raiffeisen Bank, and Alfa Bank. The central bank’s services have become unavailable or began experiencing significant interruptions at around 11 a.m. local time, the source said. This corresponds to an article in the Russian business news outlet Frank Media, which sai…