Russia is using cyberattacks in Ukraine to support military strikes, a report found.

For weeks after the outbreak of the war in Ukraine, American officials wondered about the weapon that seemed to be missing: Russia’s mighty cyberarsenal, which most experts expected would be used in the opening hours of an invasion to bring down Ukraine’s power grid, fry its cellphone system and cut off President Volodymyr Zelensky from the world.

None of that happened. But in a new study released Wednesday by Microsoft, it is now clear that Russia used its A-team of hackers to conduct hundreds of far more subtle attacks, many timed to coincide with incoming missile or ground attacks.

“They brought destructive efforts, they brought espionage efforts, they brought all their best actors to focus on this,” said Tom Burt, who oversees Microsoft’s investigations into the biggest and most complex cyberattacks that are visible through its global networks. Read more

@nytimes