Infosecurity Europe: How Proton Fights Against Cybercriminals Using Its Services

Proton's COO explains at Infosecurity Europe that the company cannot access encrypted message contents due to its architecture, so it focuses on account-level and behavioral anti-abuse systems (machine-learning detection of bot-driven sign-ups, clusters, etc.) and requires lawful, Swiss-authority-validated takedown or metadata requests before cooperating with investigations.