Any court showdown between Apple and the Home Office over customer data must be held in public, MPs have demanded.

It comes after the tech giant announced last month that it would no longer offer UK customers its most advanced, end-to-end security encryption feature for cloud data storage following a row with the government.

The dispute was sparked when ministers reportedly decided to issue Apple with a Technical Capability Notice (TCN) demanding the right to see the user data.

Legally, neither of the parties can publicly confirm the existence of the order.

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However, ComputerWeekly and others have reported that Apple has launched an appeal against the TCN, with an initial hearing set to be heard on Friday before the Investigatory Powers Tribunal at the High Court in London.

A court listing document shows a behind-closed-doors application is due to be held before Lord Justice Singh and Mr Justice Johnson.

Veteran Tory MP and civil rights campaigner Sir David Davis told Sky News: “If the Home Office wants to have effectively unfettered access to the private data of the (innocent) general public, they should explain their case in front of the public.”

Also speaking to Sky News, Liberal Democrat technology spokesperson Victoria Collins said: “The move by the government endangers people here in the UK and sets a dangerous precedent for authoritarian regimes across the globe…

“I’m proud to add my name to the call for the hearing on this crucial issue to be open to the public. People deserve to know what’s happening to their private personal information.”

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Reform UK chief whip Lee Anderson said: “If the government wishes to pry on its people, they can make that claim in public. This now puts the security and privacy of the British people at risk.

“The government should have as little involvement in our personal lives as possible. Not in our tweets, not in our text messages, and certainly not with full access to our phones.”

Prior to its removal in the UK, Apple‘s Advanced Data Protection service allowed users the ability to encrypt their data in such a way that no one, not even the tech company, would be able to access it.

Critics fear the use of end-to-end encryption – where third-party access is impossible – could help criminals like paedophiles hide their activity from authorities.

However, providing access to encrypted data, whether to a government or a company, provides potential pathways for third parties such as hackers to access information.

Successive governments have said they want to restrict the use of the function.

Apple has never commented on the TCN, but said in a previous statement: “Enhancing the security of cloud storage with end-to-end encryption is more urgent than ever before.

“Apple remains committed to offering our users the highest level of security for their personal data and are hopeful that we will be able to do so in the future in the United Kingdom.

“As we have said many times before, we have never built a backdoor or master key to any of our products or services and we never will.”

The Home Office declined to comment.

Rupert Lowe is consulting lawyers about taking possible libel action against Reform UK, Sky News understands.

The Great Yarmouth MP has accused the party of making “untrue and false allegations” about him after he criticised leader Nigel Farage in the media, sparking a bitter public row.

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A day after the 67-year-old questioned whether Mr Farage could make it as prime minister, Reform UK announced on Friday it had referred him to police and suspended him, alleging he made “verbal threats” against chairman Zia Yousaf.

The Met has launched an investigation into these claims, which Mr Lowe has vehemently denied.

Reform has also claimed it has received complaints from two female employees about serious bullying in Mr Lowe’s constituency office.

The now independent MP has strenuously denied these claims as well, saying the allegations do not relate to him and were made by staff who themselves faced disciplinary action.

Mr Lowe believes he is the victim of a “witch hunt” after speaking out against the party’s leadership in an interview with the Daily Mail that was published last week, in which he challenged Mr Farage’s “messianic” tendencies.

He has not ruled out joining the Conservatives or another political party, while Mr Farage has said there is “no way back” for the suspended MP and accused him of being “out to cause maximum damage” to Reform UK.

The feud could deepen still with Mr Lowe now mulling legal action over claims made about him during the ongoing war of words, it is understood.

The former Southampton FC chairman has accused Mr Farage of spreading “outright lies” after he told GB News that he “knows for a fact” Mr Lowe was informed of a parliamentary investigation into bullying allegations on 29 Feb and gave an interview with the Mail “shortly after that”.

According to the Mail, the interview was held on 25 February – days before Mr Lowe received a letter from Reform’s chief whip Lee Anderson informing him of concerns over his conduct.

The letter, seen by Sky News, was from Reform rather than parliament and says the parliamentary party has determined an independent investigation is the best course of action.

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Mr Lowe has urged Mr Farage to “apologise, retract and correct the record,” posting on X: “To suggest I used the interview to deflect from any investigation is factually untrue. I have heard absolutely nothing from parliament about any of this.”

Mr Lowe also denies claims made by Mr Anderson that he has not co-operated with the independent inquiry into his behaviour.

Last night, seven members of his team put their names on a statement coming to Mr Lowe’s defence, saying he is a “good, decent and honest man”, that they have never witnessed “violent or vicious” behaviour and allegations of bullying are “robustly denied by all of us”.

Sky News has contacted Reform UK for comment.

The row poses danger for a party that has its sights on entering government at the next election after a meteoric rise in the polls.

In his interview with the Mail, Mr Lowe said it was “too early to know” if Mr Farage will become prime minister and warned Reform remains a “protest party led by the Messiah” under the Clacton MP.

He also claimed that he was “barely six months into being an MP” himself and “in the betting to be the next prime minister”.

During Mr Farage’s online falling out with Elon Musk, in which he said Reform needed a new leader, Mr Lowe drew praise from the Space X billionaire.

In a move seen as a hint of a new splinter group, another ousted Reform UK politician, former deputy leader Ben Habib, told The Daily Telegraph that Mr Lowe was a “good friend” and he was “constantly in touch with” him.