France steps up cyber defence in wake of attacks
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Since the Paris terror attacks in January, thousands of French websites have fallen victim to cyber attacks. Just two weeks ago, hackers claiming to be from the Islamic State group hacked the French broadcaster TV5Monde, bringing down the website and the channel. But what if terrorists could hack into a nuclear power station or a city's water treatment system? Our reporters explore how safe our critical infrastructure is from terror attacks.
Programme prepared by Yong Chim and Elise Duffau