The UK’s top law enforcement officer says Britons must be prepared to sacrifice their freedoms online if they want to be protected from terrorists and cyber criminals. This includes giving authorities access to private email and social media contents.

Speaking to The Guardian, the director general of the National Crime Agency (NCA), Keith Bristow, warned that the UK’s biggest threats are becoming increasingly focused on the web, and that authorities had not done enough to persuade the public that greater oversight of their online activity was necessary.