A hooded man holds a laptop computer as a blue screen with an exclamation mark is projected on him in this illustration picture taken on May 13, 2017. Capitalising on spying tools believed to have been developed by the US National Security Agency, hackers staged a cyber assault with a self-spreading malware that has infected tens of thousands of computers in nearly 100 countries. Photo: Reuters A hooded man holds a laptop computer as a blue screen with an exclamation mark is projected on him in this illustration picture taken on May 13, 2017. Capitalising on spying tools believed to have been developed by the US National Security Agency, hackers staged a cyber assault with a self-spreading malware that has infected tens of thousands of computers in nearly 100 countries. Photo: Reuters
A hooded man holds a laptop computer as a blue screen with an exclamation mark is projected on him in this illustration picture taken on May 13, 2017. Capitalising on spying tools believed to have been developed by the US National Security Agency, hackers staged a cyber assault with a self-spreading malware that has infected tens of thousands of computers in nearly 100 countries. Photo: Reuters

Cyber security shares rally after worldwide ‘ransomware’ onslaught

A hooded man holds a laptop computer as a blue screen with an exclamation mark is projected on him in this illustration picture taken on May 13, 2017. Capitalising on spying tools believed to have been developed by the US National Security Agency, hackers staged a cyber assault with a self-spreading malware that has infected tens of thousands of computers in nearly 100 countries. Photo: Reuters A hooded man holds a laptop computer as a blue screen with an exclamation mark is projected on him in this illustration picture taken on May 13, 2017. Capitalising on spying tools believed to have been developed by the US National Security Agency, hackers staged a cyber assault with a self-spreading malware that has infected tens of thousands of computers in nearly 100 countries. Photo: Reuters
A hooded man holds a laptop computer as a blue screen with an exclamation mark is projected on him in this illustration picture taken on May 13, 2017. Capitalising on spying tools believed to have been developed by the US National Security Agency, hackers staged a cyber assault with a self-spreading malware that has infected tens of thousands of computers in nearly 100 countries. Photo: Reuters
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