In the case of suspected cyberattack, the tire-maker Continental, it is investigating theft of company data. However, company declined to comment so far on reports that hackers had put up any information for sale

World Business Watch: Continental investigates cyberattack; data up for sale for $50 mn, say reports

Ukraine on Tuesday said that websites of the country’s defence ministry, armed forces and two banks came under a cyber attack. The Ukrainian Centre for Strategic Communications and Information Security, which is part of the culture ministry, issued a statement suggesting that the perpetrator may have Russian origins.

As predicted by US, Ukraine hit by cyber attacks amid Russian invasion fears

Cyber security firms are trying to piece together who was behind the computer worm, which has paralysed thousands of machines worldwide

Global cyber attack likely cover for malware installation in Ukraine: Police official

Several companies in Russia, Ukraine, France, Denmark and the UK have been hit by cyber attacks

Ransomware attack strikes companies across Europe