Apple has taken the UK government to court over a demand to access its customers' private iCloud data. The case was filed in August 2026 at a specialist court called the Investigatory Powers Tribunal, which handles complaints about surveillance powers (The Guardian; Reuters).

The dispute is about a feature called Advanced Data Protection. It is an optional iCloud setting that uses end-to-end encryption. Think of end-to-end encryption like a safe that only you have the key to. Even Apple cannot open it (BBC News). The UK government wants a way in. It is using a law called the Investigatory Powers Act, passed in 2016, which lets ministers issue secret orders called technical capability notices. These can force companies to build tools that give security services access to customer data. Companies are not allowed to tell anyone the orders exist.

The Home Office first ordered Apple to provide access in early 2025. That order caused a diplomatic row. US politicians were angry because a built-in access point in Apple's global systems could let the UK read American citizens' data. The order was withdrawn. In February 2026, two US lawmakers asked the UK government for a briefing and warned that any such weakness could be exploited by hackers and authoritarian governments (Reuters).

In October 2025, the UK government tried again with a revised request that did not apply to US users (BBC News). In August 2026, the Home Office made a fresh request for access to encrypted iCloud data belonging to British users. That is what triggered Apple's current legal challenge (The Guardian). The exact details of the latest demand, including whether US accounts are again excluded, have not been made public.

The government had tried to keep the legal challenge heard entirely in secret, but failed. The Tribunal has told both sides to agree on a set of facts, and a seven-day hearing is planned for early 2026 (Privacy International). A hearing could take place in March, according to the Tribunal's directions (Investigatory Powers Tribunal.

Sir Brian Leveson, the Investigatory Powers Commissioner, has said these orders would only be issued if the Home Secretary decides they are necessary and proportionate. A judge must also review and approve the decision before any order takes effect (BBC News). Ministers say this two-step check provides accountability while keeping the secrecy that intelligence agencies say they need.

Civil liberties groups have backed Apple. Privacy International welcomed the challenge against what it called the UK's regime of secret orders (BBC News). Ruth Ehrlich of Liberty said the case was "hugely important" for public privacy rights.

The heart of the problem is this. The law was written in 2016, before end-to-end encryption became standard on major apps and services. The idea behind the government's orders was to get help accessing one person's data. But end-to-end encryption works in a way that makes that impossible to do safely. Any key that opens one person's data opens everyone's. That is why US lawmakers got involved, and it is likely to be a central issue in the hearing.

The Home Office says it cannot comment on individual orders because the law requires secrecy. Apple has not published the text of any of the demands.

The case applies across the whole of the UK. The law in question is reserved to Westminster, meaning it covers England, Scotland, Wales and Northern Ireland. There is no separate role for devolved governments, though the Scottish Government and the Senedd — the Welsh parliament — have previously raised broader concerns about civil liberties.

The big unanswered question is whether a UK authority can force an American company to weaken encryption that protects users around the world. The government's decision to narrow its October request to non-US accounts suggests it recognises the difficulty. Whether that narrower approach holds up in court is what the hearing will decide.