Dr Frank Stajano
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Cybersecurity coach Dr Frank Stajano

Computer hackers are constantly exploiting security flaws and accessing private information. For the participants at a new annual competition, though, it's not a crime - it's a sport.

Blood-curdling cries were punctuated by the sound of bamboo swords thwacking against armour, as Cambridge University's Kendo team practiced for their annual match against arch rivals Oxford.

The samurai-inspired martial art requires skill in both attack and defence, and according to the team instructor Dr Frank Stajano, cyber-security is no different.

Video Journalist: Chris Vallance.