A ransomware attack has struck computers across the globe, taking out servers at Russia's biggest oil company, disrupting operations at Ukrainian banks and shutting down computers at multinational shipping and advertising firms. An adviser to Ukraine's Interior Minister said the virus got into computer systems via "phishing" emails written in Russian and Ukrainian, designed to lure employees into opening them. According to the state security agency, the emails contained infected Word documents or PDF files as attachments.

http://www.abc.net.au/news/2017-06-28/ransomware-virus-hits-computer-servers-across-the-globe/8657626