The hospital where Kate Middleton was treated last night refused to disclose whether staff who allegedly tried to hack the royal’s medical records were still working at the prestigious clinic.

Bosses of The London Clinic launched the urgent probe after it was claimed at least one member of staff had attempted to access the Princess of Wales’ personal details after she underwent planned abdominal surgery in January.

Mystery shrouded the huge security scandal yesterday with the private hospital refusing to answer questions about when it was first made aware of the violation claims or if the staff responsible had been suspended while the probe continues.

Data watchdog, the Information Commissioner’s Officer (ICO), confirmed to MailOnline it had ‘received a breach report’ and was in the process of assessing the information provided.

Meanwhile, insiders at the hospital, based in Marylebone, central London, said staff had been ‘left utterly shocked and distraught’ that a ‘trusted colleague’ could have carried out such a ‘breach of trust and ethics’.

A huge security breach has taken place at the hospital where Kate Middleton (pictured in December 2022) was treated after staff were reportedly accused of attempting to access her private medical records

The London Clinic, where the Princess of Wales was treated after undergoing abdominal surgery, first opened its doors in 1932. Above: Police outside the hospital today as Kate undergoes treatement

Prince William was seen at the Millennium Gallery in Sheffield as his wife continues to recover

Kate is said to be aware of the allegations, while a spokesperson for Kensington Palace said of the potential criminal offence: ‘This is a matter for the London Clinic.’

The alleged breach of privacy comes as crazed conspiracy theories emerged after the Princess recovered in private following her procedure on January 16.

Disgraceful trolls on social media used Kate’s decision to recover in away from the public limelight as an opportunity to spread baseless and hurtful claims.

‘Katespiracies’ included claims she was recovering from a ‘Brazilian bum lift’ or in a coma, a theory sparked by a Spanish journalist. Other more sinister theories included that she was dead, had been replaced by a body double or that the Wales’ marriage was in trouble.

The London Clinic could not confirm the exact date the alleged breach is said to have taken place but the revelation came a day after footage emerged of Kate out and about in Windsor over the weekend.

Revealing the scandal, one insider at the hospital told the Mirror: ‘This is a major security breach and incredibly damaging for the hospital, given its unblemished reputation for treating members of the Royal Family.

‘Senior hospital bosses contacted Kensington Palace immediately after the incident was brought to their attention and assured the palace there would be a full investigation.

‘The whole medical staff have been left utterly shocked and distraught over the allegations and were very hurt that a trusted colleague could have allegedly been responsible for such a breach of trust and ethics.’

It is a criminal offence for staff in any NHS or private healthcare setting to access the medical records of a patient without the consent of the medical provider’s data controller.

Kate (pictured in 2022) is said to be aware of the allegations, while a spokesperson for Kensington Palace said of the potential criminal offence: ‘This is a matter for the London Clinic’

Last night The London Clinic last night refused to disclose whether staff who allegedly tried to hack the royal’s medical records were still working at the prestigious hospital

King Charles walks out of The London Clinic on January following a three night stay in hospital after prostate surgery

The Met Police told MailOnline it was unable to comment without knowing if the clinic had reported the incident to the force.

While the clinic refused to answer questions, it said it firmly believes ‘that all our patients, no matter their status, deserve total privacy and confidentiality regarding their medical information’.

Details of Kate’s condition have not been revealed but Kensington Palace previously said it was not cancer-related and that the Princess wished her personal medical information to remain private.

Upon announcing that Kate was undergoing surgery Kensington Palace said the Princess would be out of action until after Easter.

Despite laying out a clear timeline, her temporary step back from work led to a tsunami of speculation being made about the her condition on social media.

The absurd claims only intensified when the Princess took the blame for the family photograph released by Kensington Palace on Mother’s Day, which was ‘𝓀𝒾𝓁𝓁ed’ by six of the world’s top picture agencies over concerns that it had been ‘manipulated’.

The furor on social media led the Princess to make a personal apology on X, writing ‘Like many amateur photographers, I do occasionally experiment with editing.’

Last week, friends of William and Kate said they ‘want to be clear and more open’ about her health woes – but will only share with the public ‘when they feel ready’.

The London clinic refused to comment on the claims but said told the paper it firmly believes ‘that all our patients, no matter their status, deserve total privacy and confidentiality regarding their medical information’

Kensington Palace released the picture of the Princess of Wales since surgery

William and Kate were spotted leaving Windsor for Westminster Abbey to attend The Commonwealth Day Service last Monday

‘She and William are at their most open when out interacting with the public. I can see a world in which the Princess might discuss her recovery out on engagements,’ a source told the Sunday Times.

‘If she was going to do it, that’s how she would do it. They appreciate the public’s love and affection for their children and know there is a public appetite to see them on their birthdays.’

Kensington Palace has maintained that Kate is ‘doing well’ and will only provide significant updates.

The Princess is now expected to return to public duty after April 17, when her children start back at Lambrook School, near Ascot, following the Easter Holidays.

There has been some speculation that the Princess could now make an earlier return and may even be seen walking into the annual Easter Matins service at St George’s Chapel on the Windsor estate.

According to the Telegraph, the Princess has not ruled out making a return to the public eye on Easter Sunday and could join her family for the traditional walk about, which would be photographed.

A palace source told the paper there had been ‘no confirmation either way’ adding that anything else was speculation.

The hospital’s investigation comes just days after videos and pictures emerged on Monday of Kate and Prince William attending a farm shop in Windsor.

Prince and Princess of Wales with their three children Prince George, Princess Charlotte and Prince Louis in Norfolk in 2022

It showed a smiling Kate carrying a shopping bag as she walked swiftly from the shop, a mile away from their Adelaide Cottage.

While the film provided relief to millions in the UK – suggesting that the Princess’ recovery is on track – crazed trolls took to social media claiming that the video was not Kate but a body double.

The hospital’s security breach revealed yesterday is not the first time the Princess has faced public exposure of otherwise private medical records.

In December, it was uncovered that a gang of hackers had tried to break into the computer system of King Edward’s VII Hospital’s, where Kate had previously been treated.

Just days before Christmas, the group threatened to release ‘data from the Royal Family’ unless they were paid £300,000 in the cyber currency Bitcoin.

The ransom demand was made on the dark web, where the hackers posted images of what they claim are stolen files including X-rays, letters from consultants, registration forms, handwritten clinical notes, and pathology forms.

The gang said: ‘Unique files are presented to your attention! Data from the Royal Family! A large amount of patient and employee data. Sale in one lot!!’

In 2012, two Australian radio DJs pretended to be the Queen and Prince Charles in a prank-call to staff at King Edward VII’s hospital, where Kate was being treated for acute morning sickness.

Kate is pictured at the Christmas Day morning church service in Sandringham last year, which was the last time she was seen at a royal engagement before her surgery

Kate, Charlotte, George, William and Louis at the Sandringham Christmas Day 2023 service

Not seeing through their impressions, night nurse Jacintha Saldanha patched them through to a nurse helping to treat the duchess.

The stunt, which drew out information about Kate’s medical condition, was broadcast in full. But it turned to tragedy when mother-of-two Mrs Saldanha was found hanged three days later.

The incident – and its tragic consequences – were known to have greatly affected the royal couple. In a letter written to Mrs Saldanha’s family, William said they were ‘so sorry that someone who cared for others so much found themselves in such a desperate situation.’

The London Clinic, where the Princess of Wales was treated earlier this year first opened its doors in 1932.

King Charles, who is undergoing treatment for cancer, was also underwent surgery for an enlarged prostate at the hospital earlier this year. He was pictured smiling and waving as he left the building on January 29 alongside Queen Camilla.

The hospital’s illustrious list of previous patients includes Prince Philip, Princess Margaret, Hollywood star Elizabeth Taylor and future US President John F Kennedy.

The clinic has a leading cancer centre which hosts patients for chemotherapy, radiotherapy and other treatments.

Since the 1980s, a number of facilities at the site have been officially launched by members of the royal family.

Queen Elizabeth II leaves the London Clinic after visiting her husband Prince Philip, Duke of Edinburgh on June 15, 2013

The London Clinic has previously treated Prince Philip. The late Duke of Edinburgh is pictured above leaving the private hospital in 2013

Princess Margaret was treated there in 1980 to have a benign skin lesion removed

The King, as the then-Prince of Wales, opened the physiotherapy department in 1989, while Princess Margaret launched the MRI unit in 1991 and the late Queen unveiled a new cancer unit in 2010.

Prince Philip was admitted to the clinic for what was described as ‘abdominal investigations’ in 2013, whilst Princess Margaret was treated there in 1980 to have a benign skin lesion removed.

In 1947, Kennedy, who was then a US Congressman, was diagnosed with Addison’s disease at the clinic.

Taylor underwent a knee operation there in January 1963 after falling on a film set.

Other former patients include former Labour Prime Minister Clement Attlee, who was admitted in 1939 – when he was Leader of the Opposition – for surgery on his prostate.

Another former PM, Conservative Anthony Eden, had his gall bladder removed at The London Clinic in 1953, when he was Foreign Secretary.

Current Foreign Secretary David Cameron, who was PM from 2010 until 2016, was born there in 1966.