This is the new MLex platform. Existing customers should continue to use the existing MLex platform until migrated.
For any queries, please contact Customer Services or your Account Manager. Dismiss

Adtech suits against Index Exchange, Xandr pair national security, privacy claims

By Mike Swift ( September 10, 2025, 21:14 GMT | Comment) -- Two adtech companies are among the first to face privacy lawsuits alleging violations of new US national security rules that restrict the transfer of Americans’ personal data to adversary nations such as China. The lawsuits, which challenge the sharing of Americans' personal data by Index Exchange and Xandr with Chinese e-commerce app Temu, highlight the growing intersection of data protection and national security, mark the US government’s first steps toward limiting the export of Americans’ personal data abroad, and underscore how the widespread sharing of personal information for ad targeting is creating a new avenue of regulatory risks.Two digital ad companies face two of the first privacy suits alleging violations of new US national security rules that limit the transfer of Americans’ personal data to companies in adversary nations — in this case, the Chinese e-commerce company Temu....

Prepare for tomorrow’s regulatory change, today

MLex identifies risk to business wherever it emerges, with specialist reporters across the globe providing exclusive news and deep-dive analysis on the proposals, probes, enforcement actions and rulings that matter to your organization and clients, now and in the longer term.


Know what others in the room don’t, with features including:

  • Daily newsletters for Antitrust, M&A, Trade, Data Privacy & Security, Technology, AI and more
  • Custom alerts on specific filters including geographies, industries, topics and companies to suit your practice needs
  • Predictive analysis from expert journalists across North America, the UK and Europe, Latin America and Asia-Pacific
  • Curated case files bringing together news, analysis and source documents in a single timeline

Experience MLex today with a 14-day free trial.

Start Free Trial

Already a subscriber? Click here to login