Is your smart speaker SPYING on you?

At first glance, there was no witness to the grisly murder of Christine Sullivan, who was stabbed to death alongside a friend, Jenna Pellegrini, at her home in rural New Hampshire in the U.S. last year.
But as detectives searched the secluded colonial-style home and its tree-lined garden, they came to realise that a big clue was staring them in the face.
For on the kitchen worktop was an Amazon Echo, one of the increasingly ubiquitous ‘smart speakers’ that can perform a host of household tasks, from checking the weather and playing music to creating shopping lists and looking up recipes.