EU’s “Chat Control” Regime Advances, Raising Major Risks for Bitcoin & Privacy

A controversial piece of European Union legislation, colloquially known as “Chat Control” is gaining renewed traction and has become highly relevant for Bitcoin users concerned about digital privacy and surveillance. The regulation in question, formally the Regulation to Prevent and Combat Child Sexual Abuse (CSAR), was proposed under Ylva Johansson in May 2022 (COM 2022 209) and would require providers of encrypted messaging and storage services to scan all private communications for CSAM, even before encryption (so‑called client‑side scanning).

According to digital‑rights organisations, at least 19 EU member states now officially or unofficially support the initiative. 

The support list reportedly includes France, Denmark, Belgium, Hungary, Sweden, Italy and Spain. Germany’s stance has become pivotal: in early October 2025 the German government announced it would vote against the measure, citing the unconstitutionality of mass chat monitoring and the threat to encryption. 

Critics argue that while the regulation is framed as protecting children, in practice it would impose blanket surveillance of private messages and files across the EU. That includes weakening end‑to‑end encryption a cornerstone of secure digital communication that underpins safe storage of keys, wallets and private data in the Bitcoin ecosystem. 

Over 500 cryptography scientists have signed an open letter warning that the proposal would undermine encryption, introduce security vulnerabilities and enable “function creep” into broader surveillance. 

For Bitcoin‑centric users and services, the implications are significant. If platforms or devices become obliged to scan content locally before encrypting, the confidentiality of wallet seeds, transaction communications, peer‑to‑peer coordination and privacy‑preserving tools could be compromised.

The fight here is not merely about child‑protection legislation, but about preserving the integrity of encrypted channels that Bitcoin relies on indirectly. With a key vote expected in the Council of the EU meeting on 14 October 2025, this regulation remains a live threat — even if temporarily delayed. 

Its final outcome will determine whether Europe moves into a new era of device‑level mass scanning.