Is End-to-End Encryption Optional For Large Groups?
Summary
The article argues that end-to-end encryption remains crucial for large group messaging, especially in federated systems, to protect users and operators against data sweeps and legal pressure. It discusses trade-offs between centralized and federated architectures, age verification, and demonstrates that scalable E2EE like TreeKEM can support thousands to millions of users, concluding E2EE should be ubiquitous.