The attacks knocked out the Ukrainian defence ministry’s website and two bank networks were knocked out.
According to the internet monitoring organisation NetBlocks, the attack hit on Tuesday afternoon and lasted for several hours.
In a statement yesterday, the organisation revealed that “NetBlocks metrics confirm the loss of service to multiple banking and online platforms in Ukraine, in a manner consistent with a denial-of-service attack. The incident comes amid heightened tensions with neighbouring Russia.”
“Metrics indicate impact beginning from Tuesday afternoon intensifying in severity over the course of the day. Some service was restored by the evening.”
The two banks impacted were the state-owned PrivatBank and Oschadbank.
It is not certain who carried out the attack but it is presumed that it was coordinated from Moscow. The attack follows news of “a massive wave of hybrid warfare” targeting Ukraine.