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WhatsApp, Signal and Threema Warn Against EU Chat-Scanning Plan as Council Decision Nears

A Danish draft would force on-device scanning for abuse images, a step critics and EU legal advisers say conflicts with encryption and core rights.

Overview

  • WhatsApp said the latest Council proposal still undercuts end-to-end encryption and urged EU countries to reject it, while Threema called any mass scanning incompatible with democratic principles.
  • Signal reiterated it would leave the European market rather than implement client-side scanning that inspects messages, photos and videos before encryption.
  • EU ambassadors are discussing the text this week ahead of a possible ministerial decision next week, with the Danish presidency pressing to advance the file.
  • Germany has not declared its stance, and groups including the Chaos Computer Club and D64 are pressing Berlin to oppose the measure as activists mobilize the public.
  • Legal and security concerns persist, with the Council’s Legal Service reportedly warning of incompatibility with fundamental rights and experts citing systemic vulnerabilities and high error risks.