Most UK patients saw no change on Monday after cyber attack - minister

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

Among the organisations targeted worldwide have been Germany's rail network Deutsche Bahn, Spanish telecommunications operator Telefonica, US logistics giant FedEx and Russia's interior ministry.

Hundreds of thousands of computers have been affected so far.

But Health Secretary Jeremy Hunt failed to address the NHS attack when he was approached by BBC reporters on Monday.

The agency said Monday that "very few" people have paid the ransom.

Meanwhile, automaker Renault decided not to reopen a 3,500-employee plant in France on Monday as a "preventative step".

"It seems that a lot of internet security guys over the weekend did their homework and ran the security software updates". In Indonesia, the ransomware locked patient files on computers in two hospitals in the capital, Jakarta, causing delays. Patients have had to be turned away because their records were inaccessible.

The U.K.'s National Cyber Security Centre said new cases of so-called ransomware are possible "at a significant scale". It spread to so many computers so rapidly by using an exploit - software capable of burrowing unseen into Windows computer operating systems. They were installing software to fix the problems.

"One of the rules in Russia is that Russian criminals are not allowed to hack Russian targets", Lewis said. "It's like after a robber enters your home". A text document also appears with information about what has happened, the Bitcoin wallet that you should send payment to, and how to make decryption work.

Ransomware is a program that gets into your computer, either by clicking on the wrong thing or downloading the wrong thing, and then it holds something you need to ransom.

Other factors were the large number of old, outdated software programmes in use and often ineffective security systems. However, he said it's only a matter of time before a malevolent version exists.

Enable the "Show file extensions" option in the Windows settings on your computer.

"I still expect another to pop up and be fully operational", Kalember said. Users are confronted with a screen demanding a $300 payment to restore their files.

Besides, the Maharashtra Police department said it was partially hit by the ransomware.

Analysts had feared that the attack, which started spreading on Friday, could accelerate as workers returned to their desks after the weekend and turned on compromised machines. The trust, along with York Teaching Hospital NHS Trust, said that most surgery and outpatients appointments would go ahead, and that patients whose appointments had been cancelled would be notified. Other sources rely on different methodologies, such as the United States government's own digital analytics service, which bases its data on visitors directly accessing government sites.

That is according to Microsoft president and chief legal officer Brad Smith, who pointed out in a blog post that the ransomware employed stolen "exploits" from the National Security Agency-"exploits" are ways to exploit computer vulnerabilities, which governments use to attack each other on the field of cyber battle.

The Europol spokesman said it was too early to say who is behind the onslaught and what their motivation was. "Dame Fiona highlighted the importance of this in the review that she published past year, and is committed to working with others across the system to ensure that effective measures are in place, and that lessons are learned from this incident". Microsoft issued a patch for this vulnerability back in March, but people are unfortunately slow to update.

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