CORRESPONDENCE 12 May 2026 By Shenglong Li 0 Shenglong Li Cancer Hospital of Dalian University of Technology, Shenyang, China. Email Bluesky Facebook LinkedIn Reddit Whatsapp X In April this year, de-identified data from UK Biobank participants were listed for sale on an e-commerce platform in China. The UK Biobank has long defended open science, advocating for data sharing to be guided by scientific value and compliance, not geopolitical restrictions. Access options Access Nature and 54 other Nature Portfolio journals Get Nature+, our best-value online-access subscription $32.99 / 30 days cancel any time Subscribe to this journal Receive 51 print issues and online access $199.00 per year only $3.90 per issue Rent or buy this article Prices vary by article type from $1.95 to $39.95 Prices may be subject to local taxes which are calculated during checkout Additional access options: Log in Learn about institutional subscriptions Read our FAQs Contact customer support Nature 653 , 642 (2026) doi:…