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Cyber attack sweeps globe, researchers see 'WannaCry' link
This file photo taken on April 18, 2011 shows a view of the 4th power block of the Chernobyl Nuclear Power Plant. On June 27, Chernobyl's radiation monitoring system was affected by acyberattack. PHOTO | AFP
A major global cyber attack on Tuesday disrupted computers at Russia's biggest oil company, Ukrainian banks and multinational firms with a virus similar to the ransomware that last month infected more than 300,000 computers.
The rapidly spreading cyber extortion campaign underscored growing concerns that businesses have failed to secure their networks from increasingly aggressive hackers, who have shown they are capable of shutting down critical infrastructure and crippling corporate and government networks.
