London Daily

Focus on the big picture.
Thursday, Oct 01, 2026

Revealed: how drugs giants can access your health records

Revealed: how drugs giants can access your health records

Experts say information sold on by Department of Health and Social Care can be traced back to individual medical records
The Department of Health and Social Care has been selling the medical data of millions of NHS patients to American and other international drugs companies having misled the public into believing the information would be “anonymous”, according to leading experts in the field.

Senior NHS figures have told the Observer that patient data compiled from GP surgeries and hospitals – and then sold for huge sums for research – can routinely be linked back to individual patients’ medical records via their GP surgeries. They say there is clear evidence this is already being done by companies and organisations that have bought data from the DHSC, having identified individuals whose medical histories are of particular interest.

Concerns that the data is not truly “anonymous” have been raised by senior NHS officials, who believe the public are not being told the full truth. But the DHSC insists it only sells on information after thorough measures have been taken to ensure the complete anonymity and confidentiality of patients’ personal information.

In December, the Observer revealed that the government had raised £10m in 2018 by granting licences to commercial and academic organisations across the world that wanted access to so-called anonymised data. If patients do not want their data to be used for research they have to actively “opt out” of the system at their GP surgery.

Access to NHS data is increasingly sought by researchers and global drugs companies because it is one of the largest and most centralised public organisations of its kind in the world, with unique data resources.

Washington has already made clear it wants unrestricted access to Britain’s 55 million health records – estimated to have a total value of £10bn a year – as part of any post-Brexit trade agreement. Leaked details of meetings between US and UK trade officials late last year showed that the acquisition of as much UK medical data as possible is a top priority for the US drugs industry.

Now the DHSC and the agencies responsible for handling and selling data are increasingly under pressure to tighten up controls, to protect patient privacy and prevent information being misused.

Asked if it was right to say that the patient data was anonymous, as claimed, Professor Eerke Boiten, director of the Cyber Technology Institute at De Montfort University in Leicester, said: “The answer is no, it is not anonymous.

“If it is rich medical data about individuals then the richer that data is, the easier it is for people who are experts to reconstruct it and re-identify individuals.”

Boiten believes more thought should be given to controlling and limiting the sale of data to prevent it potentially being sold on by the initial purchaser to companies with huge information stores and global reach. “If Google, for instance, were to use this data and end up finding a cure for cancer, and then sold the cure back to the NHS for huge sums of money, then I think we could say we had missed a trick,” he said.

The NHS has previously faced claims that medical data from millions of patients has been sold to insurance companies.

Phil Booth, coordinator of medConfidential, which campaigns for the privacy of health data, said the public was being betrayed by claims that the information could not be linked back to individuals. “Removing or obscuring a few obvious identifiers, like someone’s name or NHS number from the data, doesn’t make their medical history anonymous,” he said. “Indeed, the unique combination of medical events that makes individuals’ health data so ripe for exploitation is precisely what makes it so identifiable. Your medical record is like a fingerprint of your whole life.

“Patients must know how their data is used, and by who. Alleging their data is anonymous when it isn’t, then selling it to drugs and tech companies – or, through intermediaries, to heaven knows who – is a gross betrayal of trust. People who are rightly concerned about such guile and lack of respect have every right to opt out, if they want their and their family’s medical information kept confidential and for their own care.”

Licences to buy data are issued by the Clinical Practice Research Datalink (CPRD), part of the Medicines and Healthcare Products Regulatory Agency (MHRA). A spokesman said any information sold had been “anonymised in accordance with the Information Commissioner’s Office (ICO) anonymisation code of practice”.

Until early December, the CPRD said on its website the data it made available for research was “anonymous” but, following the Observer’s story, it changed the wording to say that the data from GPs and hospitals had been ”anonymised” – meaning only that some measures had been taken to de-identify it.

Booth added: “Following the ICO’s code of practice does not mean that data is necessarily anonymous. The law now recognises that one of the most common methods of ‘anonymisation’ – the use of pseudonyms to obscure some bits of information – means that data is still identifiable. Indeed, the information commissioner herself says it must be considered personal data.”

Information disclosed by some of CPRD’s customers clearly suggests they can link the information back to individual patient records via their GP surgeries. The Boston Collaborative Drug Surveillance Program in the US, which uses DHSC data, says on its website: “Anonymized information from the CPRD on demographics, outpatient visits, hospitalizations and prescriptions dispensed is available to [our] researchers. Validation of diagnoses, reports of diagnostic tests and anonymized notes from hospitalizations and referrals can be obtained from the general practitioner upon request.”

If the data were truly anonymous it would be impossible to retrieve an individual patient’s medical notes.Neil Bhatia, a GP who is Information Governance Lead and data protection 0fficer in Hampshire, said: “Truly anonymous data – utterly incapable of being traced back to an individual – is very hard to achieve, given that there is so much information about us in the public domain and held by companies such as Facebookand Google, because so much of our personal data is out there thanks to the massive data breaches over the last few years. In fact, it’s almost impossible for record-level data (where each line of the dataset corresponds to an individual) to be made truly anonymous.”

As 2020 begins…
… we’re asking readers, like you, to make a new year contribution in support of the Guardian’s open, independent journalism. This has been a turbulent decade across the world – protest, populism, mass migration and the escalating climate crisis. The Guardian has been in every corner of the globe, reporting with tenacity, rigour and authority on the most critical events of our lifetimes. At a time when factual information is both scarcer and more essential than ever, we believe that each of us deserves access to accurate reporting with integrity at its heart.

More people than ever before are reading and supporting our journalism, in more than 180 countries around the world. And this is only possible because we made a different choice: to keep our reporting open for all, regardless of where they live or what they can afford to pay.

We have upheld our editorial independence in the face of the disintegration of traditional media – with social platforms giving rise to misinformation, the seemingly unstoppable rise of big tech and independent voices being squashed by commercial ownership. The Guardian’s independence means we can set our own agenda and voice our own opinions. Our journalism is free from commercial and political bias – never influenced by billionaire owners or shareholders. This makes us different. It means we can challenge the powerful without fear and give a voice to those less heard.

None of this would have been attainable without our readers’ generosity – your financial support has meant we can keep investigating, disentangling and interrogating. It has protected our independence, which has never been so critical. We are so grateful.

As we enter a new decade, we need your support so we can keep delivering quality journalism that’s open and independent. And that is here for the long term. Every reader contribution, however big or small, is so valuable.
Newsletter

Related Articles

0:00
0:00
Close
Southwest England Faces Flood Alerts After Heavy Autumn Storms
UK Expands Funding for Rapid Electric Vehicle Charging Infrastructure
Welsh Government Approves Funding to Upgrade South Wales Transport
Northern Ireland Tensions Rise as Orange Order Rejects Drumcree Compromise
NHS Leaders Back Early Design of Proposed National Care Service
More Than One-Third of Regional UK Universities Face Financial Deficits
UK Current Account Deficit Narrows as Cross-Border Financial Flows Remain Strong
Bank of England and FCA Issue New Rules for Stablecoins and Digital Assets
MI5 Warns UK Universities Over Research Links With Chinese Institutions
UK Energy Price Cap Rises 4% as Electricity VAT Is Temporarily Suspended
Equity Calls for UK Personality Rights to Protect Performers From AI Replication
OpenAI Pauses Advanced Model Training Following Safety Concerns
Scottish Government Proposes Replacing 32 Councils With Larger Regional Authorities
Ofgem Raises UK Household Energy Price Cap by 4% From October
UK Counter-Terrorism Police Continue Investigation After Five Arrests Near RAF Fairford
OECD Cuts UK 2027 Growth Forecast to 1%
Labour Says State Pension Triple Lock Remains Protected Through Current Parliament
Andy Burnham Pledges National Care Service With Free Social Care in England
Six Flags Permanently Shuts Landmark X2 Roller Coaster Following Safety Scandals
Metropolitan Police Rule Out Terrorism in Golders Green Stabbing Investigation
Lithium-Ion Battery Identified as Cause of Fatal Merseyside House Fire
UK Department Rejects New Sea Use Framework Due to Stakeholder Fatigue
Major Thames Water Pipe Burst Causes School Closures in London
Aldi Commits £900 Million to Expand UK Supermarket Network
Scottish Affairs Committee Warns Skills Shortages Threaten Defence Sector Expansion
Parliamentary Committee Warns Northern Ireland Budget Deadlock is Stalling Economic Growth
NHS Hospitals in England Face Severe Shortages of Essential Medications
Home Secretary Signals Major Overhaul of UK Immigration and Leave to Remain Policies
Chancellor Promises New Job Schemes Alongside Strict Fiscal Discipline
Energy Secretary Proposes Taxpayer-Funded Green Transition and National Electricity Grid
UK Government to Renationalise Avanti West Coast Railway Franchise in March
Prime Minister Andy Burnham Pledges Major Social Care and Infrastructure Reforms
Five Suspects Released on Bail Following Alleged Bomb Plot Near RAF Fairford
UK Diesel Prices Hit Record High of 199p Per Litre
Transport for Wales and Network Rail Complete Electrification of South Wales Metro
Defra Expands Incentives for Sustainable Farming and Biodiversity in England
Northern Ireland Executive Approves Funding Package to Resolve Public Sector Pay Disputes
Universities UK Warns of Financial Insolvency Risks for Higher Education Institutions
UK Prisons Activate Emergency Protocols to Manage Capacity Pressures
UK Government Establishes New Safety Standards for Frontier AI Models
Home Office Tightens Skilled Worker Visa Requirements and Dependent Rules
Ministry of Defence Restructures Royal Navy Frigate Procurement to Prevent Overruns
UK Government Mandates New Housing Targets to Address National Shortage
UK and Scottish Governments Reach Agreement on North Sea Energy Transition
NHS Launches Digital Overhaul to Reduce Surgical Backlogs in England
Bank of England Holds Interest Rates as Service Sector Inflation Persists
UK Chancellor Announces Fiscal Consolidation Measures to Stabilize National Debt
RNLI Chief Executive Condemns Misinformation and Abuse Targeting Volunteer Crews
Metropolitan Police Charge Swindon Man with Assisting Foreign Intelligence Services
British Intelligence Report Warns Environmental Collapse Threatens Global Defense Infrastructure
×