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The risk to businesses from cyber attack represents a constant threat and the costs of managing the threat increase year on year as the skills and technology available to hackers is modified and perfected. And, it is not just businesses - the economic activity of entire countries can be impacted by malicious hacking by individuals and by hostile nations. So what is to be done?

How should businesses and governments allocate resources to protect themselves? And how high are the stakes if we get this wrong? We hear from three world leaders in this field, professor Peter Sommer, cybersecurity expert and adviser to the UK government, Ben de la Salle, head of Head of IT Security and Risk, Old Mutual Wealth and Brian Lord, risk management consultant with 21 years experience working for the UK's spy agency GCHQ.
And, Colm O'Regan tells us what keeps him awake at night.