Microsoft offers free security fixes following global cyberattack

They should immediately update their Windows operating system and back up their data.

A global cyberattack that hit almost 100 countries on Friday forced hospitals in Britain to turn away patients and close emergency rooms, reports MLive.

"It was clear that warnings were given to hospital trusts but this is not something that focused on attacking the NHS here in the United Kingdom", she told reporters on Monday.

"It was actually partly accidental", he told the BBC.

Friday's extortion attack, which locked up computers and held users' files for ransom, is believed to be the biggest of its kind ever recorded.

Ransomware is a malicious software that encrypts files on your computer and then demands payments to decrypt them.

"The walk in x-ray service at Basingstoke hospital will remain closed for patients referred by their GP for the rest of the day".

But speaking publicly for the first time since the cyberattack, Health Secretary Jeremy Hunt said that "according to the latest intelligence we have not seen a second wave of attacks".

Mr Turnbull's cyber security advisor, Alastair MacGibbon, said none of Australia's government agencies or health systems had been hit. And while Microsoft said it had already released a security update to patch the vulnerability one month earlier, the sequence of events fed speculation that the NSA hadn't told the USA tech giant about the security risk until after it had been stolen. This is a service which is present in the computer and can make the system more vulnerable to these attacks.

Friday's global cyber-attack has affected more than 200,000 victims in 150 countries and regions, Europol chief Rob Wainwright said on Sunday. That amount is expected to increase. There were no reported cases in New Zealand. According to a Lakeridge spokesperson, however, the hospital's antivirus system was able to disable the ransomware.

As yet, there have been no further reports of serious "ransomware" attacks, however fears of another attack are widespread.

The damage was contained by a 22-year-old security researcher who goes by the name @MalwareTechBlog on Twitter.

NHS Digital said health trusts across England were sent details of an IT security patch that would have protected them from the attack. But some experts have argued this attack could have been vastly mitigated if the NSA told Microsoft sooner.

The attacks exploited the computers because they were running outdated versions of Microsoft's Windows operating system. Patched computers carry a much lower risk of being infected by malware or ransomware than those without an update.

Experts are concerned that more malware infections will be discovered on Monday when workers return from the weekend to their jobs.

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