An open letter
asking NHS England
to keep its code open

Code paid for with public money should be open to the public. This principle is enshrined in the UK Government Design Principles and the NHS Service Standard. It is now being walked back. We are signing this to restate the case.

2184 signatures since 1 May 2026

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Statement

We disagree with the NHS technical leadership’s decision to hide the source code of all of their repositories.

Making code open source requires more work than keeping it closed. That hard work is the point.

It requires a higher bar of quality. It requires processes to proactively find, fix, and monitor for vulnerabilities. It requires identifying risk, and putting barriers in place to contain any damage when things go wrong.

But it works like the human immune system: being exposed to threats hardens the attack surface.

Closed source allows that work to be skipped. It substitutes obscurity for depth, and obscurity buys you precious little when a sufficiently motivated attacker is involved.

We call on NHS England to withdraw the SDLC-8 red line and reaffirm its commitment to the NHS Service Standard Principle 12: “Make new source code open.”

If you agree, sign your name using the form below. Submissions are reviewed by hand and you’ll appear on the page once approved.

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Signatures

2184 signatures so far

A Whittaker Percival

Aaron Leonard

Aaron Lewis Cunnington

Abbey James

Abigail Murray

Abigail Pain

Ace Suares

Achilles Kappis

Adam Ashton

Adam Boutcher

Adam Dingwell

Adam Maddison

Adam McGreggor

Adam Perfect

Adam Reichold

Adam Schmalhofer

Adam Straughan

Adam Williamson

Adam Worley

Adolfo Santiago

Adrian Duke

Adrian Maurice Whatley

Adrian Mouat

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Adrian Portway

Adrian Zaugg

Adrien Taudière

Agoney Garcia-Deniz

Al Slater

alain williams

Alan Broun

Alan Fernando Velasco Astorga

Alan Pope

Alaric Snell-Pym

Alastair Dodd

Albert Lindgren

Alberto Locati

Alejandro Giner Páez

Alessandro Bonfanti

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Alessandro Vinciguerra

Alex Good

Alex Hardman

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Alex Kavanagh

Alex Manning

Alex Muntada

Alex Palcuie

Alex Tingle

Alex Vinokurov

Alex Warmington

Alexander Bergmann

Alexander Dahl

Alexander Dawson

Alexander Eller

Alexander Girke-Duchstein

Alexander Irrgang

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Alexander Matrunich

Alexander McKenna

Alexander Meinhardt Scheurer-Volkmann

Alexander Monro

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Alexander Peterick-Brian

Alexander Sadler

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Alfonso Cachero Gomez

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Peter Wells

Peter Yates

Phil Booth

Phil Clifford

Phil Milburn

Phil Oakley

Phil Pluckthun

Phil Weir

Philip K. Schwartz

Philip Norton

Philip Rooke

Philip Sargent

Philip Thiselton

Philip Wills

philippe de henau

Pierluigi Maria Bovi

Pierre Fenoll

Pierre Moermans

Pim Bliek

Piotr Pawelek

Polly Gannaway

Pollyanna Jones

Poshan Peeroo

Pouria Hadjibagheri

Predrag Tasevski

Primož Dovč

Prof Thomas Monks

Quentin Hanley

R. James Bradshaw

Rachael Brown

Rachel Denholm

Rachel Ilan Simpson

Rachel Lawson

Rachel Sweet

Rae Knowler

Rafael Conde Melguizo

Rahid Khan

Raimond Kurz

Rainer Nitsche

Rainer Schuermann

Ralf Eilers

Ralitsa Stancheva

Ram Rajaraman

ramiro rivera

Ramon Barrenetxea

Ramon Sole

Raymond Kennedy

Raza Toosy

Rebekah Diski

reinhard alexiewicz

Reinhard Hennig

Rely Constant

Rémi Letot

Renaud Colinet

René Kraneis

René Pieske

René Schwarz

Reuben Thompson

Reupen Shah

Rex Cooper

Rhian Davies

Ricardo Cerrato Ruiz

Ricardo Wurmus

Riccardo Zago

Rich Barlow

Richard Bensley

Richard Bogle

Richard Bowers

Richard Dyce

Richard Eyles

Richard Grimmer

Richard Harris

Richard James Baxter

Richard Moor

Richard Neill

Richard Robinson

Richard Towers

Richard Turner

Rik Willemen

Riko Uphoff

Rikupekka Oksanen

Ritesh Sinha

Rob Agar

Rob Aley

Rob Beard

Rob Corp

Rob Dyke

Rob Ruck

Rob Tagg

Robbie Adam Blakeman

Robbie Morrison

Robert Costa

Robert Dillon

Robert Emery

Robert F. Wood

Robert Golding

Robert Güntherberg

Robert Lee-Cann

Robert Markovski

Robert Miller

Robert Nilsson

Robert O'Donnell

Robert Oostenveld

Robert Pollak

Robert Postill

Robert Rutkowski

Robert Scott Mitchell

Robert Stonehouse

Robert Teall

Robert Whittaker

Robert Williams

Robert Wunderer

Robert Xowe

Roberto De Colle

Roberto Plà Aragonés

Robin Betts

Robin Bryce

Robin Carswell

Robin Conibere

Robin Eriksson

Robin Gape

Robin Linacre

Robin Parker Phillips

Robin Whittleton

Robyn

Roger Blummer

Roger Bullivant

Roger H Pilkington

Roke Julian Lockhart Bedell

Roland Suhr

Rolf Mulczinski

Romain Thouvenin

Roman Kornikov

Romaric Pascal

ron hiensch

Rory Gibson

Rory Malcolm

Rosia Evans

Ross Bale

Ross Buggins

Ross Burton

Ross Knapman

Ross Michael Kennedy

Ross Spencer

Rowan Sil

Roz Foad

Rui Armando Ribeiro Gomes

Rui Duarte

Rune Philosof

Russell McCreath

Ruwen Reddig

Ryan Bestford

S Page

Sabah Mahmood

Sabrina Pampaloni

Sam Baldwin

Sam Brierley

Sam Cook

Sam Cunliffe

Sam Hollings

Sam Martin

Sam Nooij

Sam Rusling

Sam Saffron

Sam Williams

Samantha Giles

Samantha Vautier

Samir Kahvedzic

Sammi Rosser

Samuel E Riffle

Samuel Edelsten

Samuel Hinsley

Samuel Littley

Samuel Oliveira Cersosimo

Samuel Orman-Chan

Sándor Haász

Sara Shaw

Sarah Keating

Sarah Surrall

Sau Fai Fong

Sayak Naskar

Schalk Neethling

Scott Hammett

Scott Nichol

Sean Boots

Sean Kearon

Seb Bacon

Sebastiaan Ammerlaan

Sebastian Crane

Sebastian Fuchs

Sebastian Miele

Sebastian Tennant

Semi Malinen

Sergio Antonio Delgado Quero

Sergio Casagrande

Serkan Holat

Shivaram Thirunavukkarasu

Si Parker

Simon Briggs

Simon Brunning

Simon Dobson

Simon Gilbert Provost

Simon Green

Simon Hawkins

Simon Hewison

Simon Holloway

Simon Kestenholz

Simon Lauckner

Simon Mendoza

Simon Myers

Simon Phipps

Simon Price

Simon Sobisch

Simon Wellesley-Miller

Sinclair Bain

Sofía Aritz

Sophie L

Soraya Safazadeh

Staf Wagemakers

Stanislaw Lewak

Stanley Garvey

Stefan Gassner

Ștefan Ilie

Stefan Lars Gunde Hansson

Stefan Monnier

Stefan Neufeind

Stefan Piatek

Stefano Tronci

Steffen Hartwig

Steph Driver

Steph Gray

Stephan Tesch

Stephen Abbott Pugh

Stephen De Gabrielle

Stephen J Smith

Stephen Jones

Stephen Simmat

Stephen Thompson

Stephen Tordoff

Stephen Whitehead

Steve Hook

Steve Jones

Steve Laing

Steve Messer

Steve Woods

Steven Coltman

Steven Maddox

Steven Ross

Stewart Dickson

Stijn van Houwelingen

Stuart Axon

Stuart Bertram

Stuart Lowe

Stuart Mackintosh

Stuart Mumford

Stuart Ward

Suren Nihalani

Susan Tootill

Suvesh Moza

Suzanne Hamilton

Sven Döring

Sven Prevrhal

Sven Wick

Sweyn Hunter

Sylvain Le Doaré

Szókovács Róbert

Tabea Weiß

Tao Bojlén

Teddy Tun Win Hla

Tekin Süleyman

Teofilis Martisius

Theo Holloway

Theodor Everley Rohrkasten

Theodor Vararu

Thibaut Renaux

Thierry Coutelier

Thomas Babb

Thomas Biehl

Thomas Deeb

Thomas Dorner

Thomas Finnberg

Thomas Hallam

Thomas Källman

Thomas Leese

thomas mead

Thomas Papamichail

Thomas Preud'homme

Thomas Stone

Thomas Zenker

Tijmen Brommet

Tim Clark

Tim Loukes

Tim Maddison

Tim Rüdenauer

Tim Whelan

Tim Wisniewski

Timothy Gentry

Timothy Gfrerer

Tobias Rade Evensen

Toby Abel

Toby Dimmick

Tom Bannister

Tom Booth

Tom Couch

Tom Fallon

Tom Forbes

Tom Lawton

Tom Morris

Tom Nicolet

Tom O'Neill

Tom Pollard

Tom Smith

Tom Stockton

tom west

Tom Yates

Tomás Cardoso da Rocha Antunes

Tomás Lickfold

Tomomi Yamano

Tomos Porter

Tony Dunn

Tony Månsson

Tony Shannon

Tor Holstein

Torsten Long

Torsten Paul

Travis Lelle

Tristan Keen

Tristan Teasdale

Trond Tynnøl

Tuomas Koskela

Uditha Atukorala

Uwe Bosse

Uwe Hostmann

Vad Khory

Valentin Hilbig

Valerio Bozzolan

Valter Mura

Vaughan Lewis

Vernay Bruno

Víctor Domènech

Victor Gavin

Vikki Lewis

Viktor Horvath

Vincent Thomson

Vishal Dhokia

Vivian Malaterre

Vlad-Stefan Harbuz

Volker Wysk

Volodymyr Sydoruk

W. van Engen

Wai Keong Wong

Walter Gussmann

Waltraud Kochhan

Wayne Cornish

Wilka Hudson

Will Langdale

Will Thompson

Will Wade

William Beard

William Burton

William Dempsey

William Etheridge

William M Browne

William Mathewson

Willow Liquorice

Wolf Duttlinger

Wolf-Dieter Groll

Wolfgang Silbermayr

Wolfgang Tiedemann

Wolfgang Traylor

Wookey

Wookey

Wouter Verhelst

Xavier Martínez Clemente

Xiyue Zhang

Yann Herbaut

Yannick Retel Helmrich

Yevhenii Kurtov

YiWen Hon

Yohann Paris

Yordan Georgiev

Yotam Laufer

Yvan Janet

Zac McChesney

Zach Leatherman

Zachary Stevens

Anonymous

× 544

Has contributed to UK public-sector software

References

• NHS Goes To War Against Open Source (Terence Eden)
• Backlash builds over NHS plan to hide source code from AI hacking risk (New Scientist)
• NHS England rushes to hide software over AI hacking fears (New Scientist)
• AI, open code and vulnerability risk in the public sector (GOV.UK)
• Reverse NHS England's decision to make its code repositories closed-source (Petition)
• NHS Service Standard — Principle 12: Make new source code open (NHS Service Manual)
• NHS England quietly removes open source policy web pages (Digital Health)
• Don’t be afraid to code in the open: how to do it securely (GOV.UK)
• Does Mythos mean shutting down your open source repos? (Terence Eden)
• Discourse is not going closed source (Discourse)