An anonymous reader quotes a report from The Guardian: Apple has launched a new legal challenge against a UK government demand to access its customers' highly encrypted data, a year after the Home Office agreed to abandon its previous request. The US tech company launched the legal complaint last month at the Investigatory Powers Tribunal (IPT), an independent court that has the power to investigate claims that the UK intelligence services have acted unlawfully. The UK government had made a second request to Apple to grant it a "back door" to encrypted iCloud data belonging to British users, according to an order issued by the court.

Britain backed down on its original demand for access to...