The European Union's efforts to implement 'Chat Control' legislation, aimed at detecting child sexual abuse material, have faced significant technical and political hurdles. Initially, a temporary, voluntary scanning regime (Chat Control 1.0) was adopted in 2021, allowing providers to scan private messages. This derogation, set to expire in 2024, saw multiple extension attempts and parliamentary debates.

Efforts to create a permanent regulation (Chat Control 2.0), proposed in 2022, stalled due to disagreements, particularly concerning end-to-end encryption. While the Commission proposed mandatory scanning and bypassing encryption, the Parliament advocated for protections, limiting scanning to visual material and requiring judicial warrants for specific suspects. Negotiations between the Parliament, Council, and Commission, known as trilogues, failed repeatedly.

In March 2026, the Parliament rejected an extension of Chat Control 1.0, passing an amendment that disallowed automated assessment of unknown content. Despite this, the Council is attempting an unprecedented revival of the expired law via a new, expedited procedure, bypassing standard committee review. The Council's Legal Service has noted that even 'voluntary' scanning proposals may violate EU Charter Article 7 without suspicion and judicial authorization. The outcome hinges on an upcoming urgency vote in Parliament.