WannaCry ransomware might attack 1,3 million computer systems

The strangest fact about this ransomware is that it did not spread because of people clicking on bad links.

Short of paying, options for those already infected are usually limited to recovering data files from a backup, if available, or living without them.

That halted the ransomware's infections by creating what is called a "sinkhole", which prevents botnets from communicating with their command-and-control servers.

A British cyber whiz was hailed an "accidental hero" after he registered a domain name that unexpectedly stopped the spread of the virus, which exploits a vulnerability in Microsoft Windows software.

"We have seen vulnerabilities stored by the Central Intelligence Agency show up on WikiLeaks, and now this vulnerability stolen from the NSA has affected customers around the world". The tools were made public by a hacking group called the Shadow Brokers.

Download the Latest Patch Security experts advise to install the Microsoft fix-MS17-010-right away. Playing with fire finally caught up with the victims. You could also use Cloud storage, but It is a risk as it makes your data vulnerable to other kinds of attacks. Microsoft requires Windows 10 customers to automatically update their computers, but some people with older PCs disabled automatic updates.

On Friday a number of agencies and businesses around the globe, including the U.K.'s National Health Service, were disrupted by the malware, which is estimated to have hit over 100,000 organizations in 150 countries, Rob Wainwright, executive director of Europol, the European law enforcement agency, told ITV.

United Lincolnshire Hospitals NHS Trust said that outpatient appointments, diagnostic tests and routine operations will also be cancelled as work continues to restore its IT systems.

As almost 45 NHS organisations from London to Scotland were hit in the "ransomware" attack on Friday, patients of the state-funded countrywide service faced chaos as appointment sand surgeries had to be cancelled.

The attacks used ransomware that apparently exploited a security flaw in Microsoft operating systems, locking users' files unless they pay the attackers a designated sum in the virtual currency Bitcoin. So even people with older computers should go update them.

Interior Ministry: The Russian Interior Ministry acknowledged a ransomware attack on its computers, adding that less than 1% of computers were affected. Install all Windows updates. 5.

The hackers remain anonymous for now, but it appears that they are amateurs. "Since this WannaCry attack has been so effective thus far, it is quite likely that this is the first of many ransomware attacks that leverage exploits to effectively spread their payloads throughout the Internet". I am anxious about how the numbers will continue to grow when people go to work and turn their machines on Monday morning. "People can report to us, if there is a known attack of ransomware virus".

Infected computers appear to largely be out-of-date devices that organizations deemed not worth the price of upgrading or, in some cases, machines involved in manufacturing or hospital functions that proved too hard to patch without possibly disrupting crucial operations, security experts said.

The organization predicts that the problem could be "at a significant scale" because some infected machines haven't yet been detected, and existing infections can spread within networks.