Global cyberattacks: Microsoft issues security updates for older versions of Windows

"They've been able to manage through it".

Businesses and networks across Asia are coping with the first wave of WannaCry during their workweek.

Friday's attack might prompt companies to reassess the balance. The ransomware exploits older versions of Microsoft's operating system software, such as Windows XP.

The RBI's instructions follow malware incidents across the world that have attacked computer systems and blocked crucial data, according to a report in The Times of India.

The major cyber attack had brought operations at hospitals, telecommunications firms and other companies to a halt. "On China's most prestigious college campuses, students reported being locked out of their final papers". If you don't want to install the update for your PC, cybersecurity company Kaspersky Lab has a step-by-step guide to secure computer. "That's what makes this more troubling than ransomware was a week ago", Thakur said. Just such a stockpiled flaw was behind the rapaciousness and rapidity with which the WannaCry ransomware spread. In the United Kingdom, where the initial attack threw parts of the health care system into chaos Friday, the government scheduled an emergency meeting Monday afternoon to discuss the attack. The second hit was registered by the French carmaker Renault, in Europe. This is true at the national level as well as amongst businesses.

Spain's Telefonica was also hit, with several sources indicating that the telecom firm had instructed employees facing a ransomware screen to simply shut down their computers and await further instructions.

The identity of whoever deployed the software remains unknown.

Cybersecurity experts say the worm exploits those NSA tools and takes advantage of a vulnerability in Microsoft software to spread the infection. Smith said, "An equivalent scenario with conventional weapons would be the USA military having some of its Tomahawk missiles stolen".

"That theft was publicly reported earlier this year". Although Microsoft released fixes in March, the attackers counted on many organizations not getting around to applying those fixes.

Misner also noted that Microsoft "worked throughout the day" to understand the attack, and was assisting their customers in dealing with the issue.

The most likely reason that out-of-date systems are still being used is the cost of upgrading them.

"This vulnerability still exits; other people are bound to exploit it", he said.

Security experts said the spread of the ransomware had been inadvertently stopped late Friday. The man identifying the Web domain for the hackers' "kill switch" and disabled the malware. "At that point, it will be harder to stop new variants". Companies located in Europe and Asia are thought to be particularly vulnerable to the ransomware as they do not have the same safeguards in place as USA businesses and many of which are running older versions of Microsoft's Windows operating system.

If you're not on a work network that already has security, consider installing some form of security program on your computer. That way if your machine gets infected and your photos and documents are encrypted, you don't need to worry about losing them. And remember that any account can be compromised.

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