Russia was designated as guilty for the cyber attack on dozens of official websites, according to BBC.

Around 70 is the number of the government websites that were temporarily blocked. A message appeared right before the attack. It said: “prepare for the worst”. However, access to most of the sites was restored within hours.

While Russia had not commented on the situation, Russia and Nato offered support to Ukraine.

For the cyber attack’s purpose, hackers used a combination of technical tools, according to Mykhailo Fedorov, Ukraine’s minister of digital transformation, told Bloomberg. They have also found malicious software capable of deleting data from affected domains.

1,200 cyber-attacks or incidents were neutralized for the past nine months by the Ukraine’s SBU security service.

A message on the hacked websites was posted in three languages – Ukrainian, Russian and Polish, when the attack started on Friday. It said:

“Ukrainian! All your personal data has been uploaded onto the public internet. This is for your past, your present and your future.”

Diaa, which provides a key system containing government services that stores personal vaccination data and certificates, was one of the targeted websites.

Happily, no personal data had been leaked, according to initial assessments, and no content had been changed, told The SBU in Kyiv.