Ukraine's defense ministry and two banks came under a cyber attack on Tuesday that shut access to the ministry's website, Ukraine's information security center said.
The Ukrainian Center for Strategic Communications and Information Security, which is part of the culture ministry, did not say who it blamed for the attack, but a statement suggested it was pointing the finger at Russia.
"It is not ruled out that the aggressor used tactics of little dirty tricks because its aggressive plans are not working out on a large scale," it said.
Kyiv has blamed Moscow for similar attacks in the past, since Russia began massing more than 100,000 troops near the frontier.
A message on the home page of the Ukrainian defense ministry website said it was under maintenance. The ministry tweeted that its website was apparently under a cyber attack and it was working on restoring the access to it.
Oshadbank confirmed the cyber attack saying that it resulted in slowing down of some of its systems. The strategic communications center said that Privatbank users also had problems with payments and a banking app. Privatbank did not immediately comment.
