Cyber-attack risks examined by Rory Cellan-Jones

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Technology correspondent Rory Cellan-Jones looks at the security of the internet, the risks of cyber attacks, and how a technology writer had his accounts hacked.

He explained that in an era where web users put more and more of their lives online, "we're coming to terms with new dangers".

The World at One is looking at the changing face of technology every day this week.

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