Atty Mashatan, a professor at Ryerson University's School of Information Technology Management, said it was nothing more than a fluke that Canada appears to have been largely spared from Friday's ransomware attack. According to the Cybersecurity professionals, they demanded a ransom of $300 from at least 2 million people as they watch their computers and electronic gadgets getting hacked. Computer systems in hospitals across the United Kingdom were struck with threats from the hackers to pay a ransom in order to regain vital medical files.

The WannaCry program encrypts your files and demands payment in bitcoin in order to regain access.

"Ransomware is where they can come down into your computer", he said.

In one instance, the cyber attack prevented people from receiving hospital care. If your computer runs Windows, make sure your operating system is updated. India also has the most number of pirated software users.

In England, 48 National Health Service (NHS) trusts fell victim, as did 13 NHS bodies in Scotland.

In Israel, Prime Minister Benjamin Netanyahu said late Sunday that his country was largely unaffected by the ransomware attack after it began preparing for such events several years ago through its new National Cyberdefence Authority. This person discovered that the unnamed online terrorists accidentally included a "kill switch" in their software that allowed owners of websites to stop the attack.

The identity of Shadow Brokers is unknown though many security experts believe the group that surfaced in 2016 is linked to the Russian government. Otherwise known as "WannaCry" or "Wanna Decryptor", the virus is likely to be modified soon and the culprits may continue the attack at greater levels.

It was not immediately clear how much, if any, ransom had been paid in connection with the widespread attack.

The VNCERT said the ransomware is extremely risky as it is capable of stealing information and decrypting the entire system that has been infected. Now, the Navy is shifting towards the use of Windows 10.

The RBI has asked banks to follow the instructions of government organisation CERT-In on ransomware, which has impacted various IT networks in over 150 countries. Sivarama Krishnan, the executive director at PWC, is working with his team to protect 2000 clients, identify the threats and block those using firewalls.

WannaCry ransomware attack: Microsoft held back the security patch update, that could have slowed down the attack, says a report.

Drawing a comparison with the global rules that apply to conventional weapons, Smith is urging governments to act more responsibly with what are basically cyber weapons.