• Home
  • Latest
  • Fortune 500
  • Finance
  • Tech
  • Leadership
  • Lifestyle
  • Rankings
  • Multimedia
HealthU.K.
Europe

A London hospital is asking its own workers for blood after a cyberattack—what’s next for the future of U.K. national security?

By
Shona Ghosh
Shona Ghosh
,
Yazhou Sun
Yazhou Sun
and
Bloomberg
Bloomberg
Down Arrow Button Icon
By
Shona Ghosh
Shona Ghosh
,
Yazhou Sun
Yazhou Sun
and
Bloomberg
Bloomberg
Down Arrow Button Icon
June 12, 2024, 4:48 AM ET
The fallout of the attack has rippled across to primary care providers whose practices rely on the affected hospitals for laboratory services.
The fallout of the attack has rippled across to primary care providers whose practices rely on the affected hospitals for laboratory services. krisanapong detraphiphat via Getty

A London hospital, facing blood supply disruptions after a cyberattack last week paralyzed operations, is asking its own clinical workers for blood.

Recommended Video

King’s College Hospital is calling on staff with the blood type O to schedule donations, according to an internal memo sent to staff and reviewed by Bloomberg News. The hospital declined to comment. National Health Service, the publicly funded health care system in England, didn’t respond to a request for comment.

The letter followed a broader appeal issued by NHS England to the general public for blood donations and is only the latest fallout from a ransomware attack that has plagued several of the region’s medical centers since June 4. The hack against Synnovis, a provider that helps manage blood transfusions and testing for the hospitals, has forced some facilities to delay medical operations, postpone blood samples and resort to handwritten records.

“NHS Blood and Transplant is calling for O blood type donors (both positive and negative) to book appointments in order to support the response to the ransomware cyber attack incident,” Julie Lowe, deputy chief executive of King’s College Hospital NHS Foundation Trust, said in the internal memo. “Staff are also encouraged to donate blood as well.”

O type blood is particularly critical. O negative blood can be given to anyone regardless of their own blood type, and O positive is the most common type. The attack has meant hospitals can’t match patients’ blood at the same frequency as usual, NHS Blood and Transplant said Monday in a statement.

The memo also warns that disruptions tied to the hack were expected to continue for the rest of the week, with the trust redirecting “a small number of patients” to other hospitals. Some planned operations and outpatient appointments will likely be canceled, Lowe said. “We still do not know when Synnovis’ systems are likely to be restored, so we should expect to be dealing with this incident for the rest of this week, and beyond,” she added.

The attack on Synnovis, a partnership between Synlab UK & Ireland, Guy’s and St Thomas’ NHS Foundation Trust and King’s College Hospital NHS Foundation Trust, has primarily affected patients of Guy’s and St Thomas’ Hospital, King’s College Hospital and primary care in southeast London. The lab services provider has said it is working with NHS England to minimize the impact on patients. 

Why Ransomware Hacks Mean Your Money or Your Network: QuickTake

The fallout of the attack has rippled across to primary care providers whose practices rely on the affected hospitals for laboratory services. 

Azeem Majeed, a physician in south London, said local practices and community services have historically ordered up 10,000 blood samples a day for testing. Providers are now restricted to requesting around 400 a day, he said. 

Routine blood tests for patients with conditions including high blood pressure, diabetes and kidney diseases are facing delays, he said, while noting that patients with urgent issues are being prioritized. 

Join us at the Fortune Workplace Innovation Summit May 19–20, 2026, in Atlanta. The next era of workplace innovation is here—and the old playbook is being rewritten. At this exclusive, high-energy event, the world’s most innovative leaders will convene to explore how AI, humanity, and strategy converge to redefine, again, the future of work. Register now.
About the Authors
By Shona Ghosh
See full bioRight Arrow Button Icon
By Yazhou Sun
See full bioRight Arrow Button Icon
By Bloomberg
See full bioRight Arrow Button Icon

Latest in Health

Dr. Javier Cárdenas is the director of the Rockefeller Neuroscience Institute NeuroPerformance Innovation Center.
Commentaryconcussions
Fists, not football: There is no concussion protocol for domestic violence survivors
By Javier CárdenasDecember 12, 2025
1 hour ago
Healthmeal delivery
The Best Meal Delivery Services for Weight Loss of 2025: Dietitian Approved
By Christina SnyderDecember 11, 2025
22 hours ago
Best protein lead image
HealthDietary Supplements
The 8 Best Protein Powders of 2025: How to Choose, According to an RD
By Christina SnyderDecember 9, 2025
3 days ago
Transparent Labs Creatine HMB as best creatine
HealthDietary Supplements
The Best Creatine Supplements of 2025: Tested and Approved
By Christina SnyderDecember 9, 2025
3 days ago
Jon Rosemberg
CommentaryProductivity
The cult of productivity is killing us
By Jon RosembergDecember 9, 2025
3 days ago
Trump
CommentaryTariffs and trade
AI doctors will be good at science but bad at business, and big talk with little action means even higher drugs prices: 10 healthcare predictions for 2026 from top investors
By Bob Kocher, Bryan Roberts and Siobhan Nolan ManginiDecember 9, 2025
3 days ago

Most Popular

placeholder alt text
Success
At 18, doctors gave him three hours to live. He played video games from his hospital bed—and now, he’s built a $10 million-a-year video game studio
By Preston ForeDecember 10, 2025
2 days ago
placeholder alt text
Success
Palantir cofounder calls elite college undergrads a ‘loser generation’ as data reveals rise in students seeking support for disabilities, like ADHD
By Preston ForeDecember 11, 2025
23 hours ago
placeholder alt text
Investing
Baby boomers have now 'gobbled up' nearly one-third of America's wealth share, and they're leaving Gen Z and millennials behind
By Sasha RogelbergDecember 8, 2025
4 days ago
placeholder alt text
Economy
‘We have not seen this rosy picture’: ADP’s chief economist warns the real economy is pretty different from Wall Street’s bullish outlook
By Eleanor PringleDecember 11, 2025
1 day ago
placeholder alt text
Uncategorized
Transforming customer support through intelligent AI operations
By Lauren ChomiukNovember 26, 2025
16 days ago
placeholder alt text
Success
What it takes to be wealthy in America: $2.3 million, Charles Schwab says
By Sydney LakeDecember 11, 2025
1 day ago
Rankings
  • 100 Best Companies
  • Fortune 500
  • Global 500
  • Fortune 500 Europe
  • Most Powerful Women
  • Future 50
  • World’s Most Admired Companies
  • See All Rankings
Sections
  • Finance
  • Leadership
  • Success
  • Tech
  • Asia
  • Europe
  • Environment
  • Fortune Crypto
  • Health
  • Retail
  • Lifestyle
  • Politics
  • Newsletters
  • Magazine
  • Features
  • Commentary
  • Mpw
  • CEO Initiative
  • Conferences
  • Personal Finance
  • Education
Customer Support
  • Frequently Asked Questions
  • Customer Service Portal
  • Privacy Policy
  • Terms Of Use
  • Single Issues For Purchase
  • International Print
Commercial Services
  • Advertising
  • Fortune Brand Studio
  • Fortune Analytics
  • Fortune Conferences
  • Business Development
About Us
  • About Us
  • Editorial Calendar
  • Press Center
  • Work At Fortune
  • Diversity And Inclusion
  • Terms And Conditions
  • Site Map

© 2025 Fortune Media IP Limited. All Rights Reserved. Use of this site constitutes acceptance of our Terms of Use and Privacy Policy | CA Notice at Collection and Privacy Notice | Do Not Sell/Share My Personal Information
FORTUNE is a trademark of Fortune Media IP Limited, registered in the U.S. and other countries. FORTUNE may receive compensation for some links to products and services on this website. Offers may be subject to change without notice.