Ukrainian military says it hacked Russia's federal tax agency

Ukraine's largest mobile operator said it had come under a powerful
cyberattack on Tuesday morning that knocked out service to millions of
people.

The company, Kyivstar, said that the attack also affected Internet access
and that it was *unclear* when service would be restored. The interruption
poses real danger in a country where many rely on phone alerts to warn them
of impending Russian bombardments.

https://www.nytimes.com/2023/12/12/world/europe/russia-hackers-ukraine-kyivstar.html

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