The European Union is proposing a regulation called ChatControl, which would require all messaging platforms to automatically scan users' private messages and images for potential child sexual abuse material. This would apply to all interpersonal communication service providers, including email, dating apps, and social media platforms. The regulation would use client-side scanning, where devices analyze content before encryption, and report any flagged content to authorities. Critics argue that this would break end-to-end encryption and compromise user privacy.