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Palantir's NHS contract sparks patient data opt-outs and public backlash

Palantir's AI-driven platform for NHS operations has sparked public backlash over its staff's access to identifiable patient data and the company's controversial government contracts. In response, 60,000 patients withdrew from research data sharing between May and July 2026, prompting government investigation and consideration of contract termination.

May 2026 Β· Palantir Β· Privacy and surveillance
May 2026
AII-1000-50911View source β†—
Quick facts
Category
Privacy and surveillance
Country
United Kingdom
Source
The Guardian
Date
May 2026
Drafted by
Raidu Incident Detection

What happened

Palantir has a Β£330m contract with NHS England to operate its federated data platform. Ministers apologised after it emerged that Palantir staff had access to identifiable patient data.

In the two months from mid-May to mid-July 2026, 60,000 more patients withdrew their data from research projects under the national data opt-out mechanism. The health innovation minister said he was worried about the impact of 'mistrust' of the company on people's willingness to share data with the NHS.

The government is deciding whether to exercise a break clause in Palantir's seven-year contract. Doctors and patients' groups have called for the company's removal, citing its work with the Israeli military and Donald Trump's ICE immigration agency.

Reported impact

The government's statistics watchdog is investigating data claimed by Palantir and NHS England about improvements to patient care. NHS England reported it could not 'draw conclusions about cause and effect' regarding operational claims made by Palantir.

The rise in opt-outs is linked to media coverage of Palantir's position and concerns about the company's values. London's mayor blocked the Metropolitan Police from awarding Palantir a Β£50m contract, stating that Londoners wanted public money to go only to companies that 'share the values of our city'.

Index analysis

The incident raises concerns about public trust in data-sharing with health services when AI systems are operated by companies with controversial government contracts or military links. Patient withdrawal from research programmes could affect the ability of the NHS to conduct important health research.

Governance controls

The UK government's statistics watchdog opened an investigation into the claims made about the platform's effectiveness. The government is considering whether to end the contract using a break clause available in the seven-year agreement.

Classification

Category
Privacy and surveillance
Industry
Healthcare, drugs and biotechnology
Country
United Kingdom
Harm status
Actual harm
Intent
Unintentional
Timing
Post-deployment
Harm types
Public interest, Human or fundamental rights, Reputational
Harmed
General public, Consumers
Failure modes
Training data misuse
Consequences
Regulatory investigation, System suspension or termination, Public apology
AI systems
Federated Data Platform
Regulations
GDPR (cited)

Sources and evidence

This record was researched and written by the Index, based on the following original reporting.

The Guardian
'Mistrust' of Palantir may affect NHS research, says health minister
7 September 2026