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Twitter • GETTY

It has been revealed that there is a new version on the WannaCry cyber attack

Maya Horowitz, a Check Point Software Technologies researcher, claimed the new virus was infecting computers at a rate of about one per second.

She added the company acted swiftly to prevent the new virus from encrypting data or spreading to other computers by activating a “kill switch” in the software.

We will get a decryption tool eventually, but for the moment, it’s still a live threat and we’re still in disaster recovery mode

Europol spokesman

Yet it is thought over 40,000 machines appear to have been infected by the second variation of the malware, despite the best efforts of cyber security companies.

The original cyber attack began spreading worldwide on Friday and by yesterday it had infected 300,000 computers in more than 150 countries. 
A Europol spokesman said: “For now, it does not look like the number of infected computers is increasing. We will get a decryption tool eventually, but for the moment, it’s still a live threat and we’re still in disaster recovery mode.”

Wanna Decryptor, also known as WannaCry or wcry, is the ransomware program behind the global cyber attack that affected the NHS.

Ransomware is the malicious software used by hackers to block access to a computer system until a ransom is paid.

WannaCry locks the data on a computer system and leaves the user with two files: instructions on what to do and the Wanna Decryptor program.

Victims have been warned that their files will be deleted within days if they do not pay up using Bitcoin, the world’s biggest virtual currency.

Investors have been scrambling to buy security stocks since the crisis and with many companies shares now at a record high. It is hoped that the new version of the virus has been stopped

Neil Campling, head of technology research at Northern Trust, said: “These attacks help focus the minds of chief technology officers across corporations to make sure security protocols are up to date, and you often see bookings growth at cyber security companies as a result.”

Victims are expected to contact the criminals for a key to unlock their files, said security expert Professor Alan Woodward, from the University of Surrey. Jeremy Hunt was under fire for not having the NHS better prepared against cyber attacks

Speaking to the BBC he said: “I very much doubt anyone would return your contact request, bearing in mind the attention that is now on this.

“If anyone pays this ransom they are more than likely going to send Bitcoin that will sit in an address for ever more. No point.”

Tech Terror NHS