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1/6 Hannah gains access to a site where staff work to make the British port secure.
6/6 Hannah Fry visits eBay authentication, where they are waging war against fake trainers.
5/6 Hannah Fry finds out how 1970s car crashes helped us to count our steps.
4/6 Hannah Fry discovers why innovations in meat packing almost derailed the electric car.
3/6 Hannah Fry delves into the inner workings of virtual assistants.
2/6 Hannah Fry tucks into the tech behind food delivery apps.
1/6 Hannah Fry takes a look at the bank card, the digital key to accessing cash.