Multiple government and company websites go down in the largest cyber-attack since the crisis began.
Last week, a similar attack took a smaller number of websites in the country offline.under direct orders from the Kremlin.
But Moscow denied being involved - and no official blame has been levelled at Russia for the latest attacks.of being behind another DDoS wave that affected about 70 government websites, some replaced with a warning to Ukrainians to "prepare for the worst".a cyber rapid-response team was being deployedIt is not known if the team of experts from six volunteer countries is helping to defend against this latest attack.
DDoS attacks have been used in various campaigns as a part of Russia's so-called "hybrid warfare" tactics, combining cyber-attacks with traditional military activity.The EU, UK and Ukraine blamed Russian government hackers for attacks on electricity substations that caused widespread power cuts in 2015 and 2016
The US, UK and EU has also blamed it for the hugely disruptive NotPetya wiper attack, which started in Ukraine but spread globally, causing billions of dollars of damage to computer systems across Europe, Asia, and the Americas.
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