Experts warn of new cyber-attack threats

Wanna Cry virus locked data and demanded a ransom on more than 200,000 computers in 150 countries.

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    Further large-scale disruption in the wake of Friday's ransomware computer attack appears to have been averted. The Wanna Cry virus locked data and demanded a ransom on more than 200,000 computers in 150 countries.

    But there are still many questions about who is responsible. Experts say the latest attack is unlikely to be the last.


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