Cyber security has become one of the most important aspect of life in the 21st century.
Which means, keeping computer systems secure becomes paramount for governments and companies.
Now, a major cyber attack that began in Ukraine has crippled computer systems around the world.
It's shut down government agencies and impacted thousands of businesses from India to Denmark.
It's linked to the so-called WannaCry ransomware, a virus that holds data hostage until a payment is made.
No one knows who's behind this attack yet but the US says it's investigating.
So, what will it take to stop attacks like these? and will it get worse before it gets better?
Presenter: Richelle Carey
Antonis Michalas - Head of Cyber Security Group at the Department of Computer Science at the University of Westminster
Patrick Flynn - Director of National Security Programs
Neil Walsh - Chief of the United Nations Global Programme on Cybercrime
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