The Infinite Brief

The study, conducted by computer science researcher Nadim Kobeissi, concludes that since its inception, ProtonMail has “never achieved end-to-end encryption security guarantees for the majority of its users.”

The study concludes that there are “serious shortcomings in ProtonMail’s cryptographic architecture that we believe should be urgently remedied. As it stands, ProtonMail does not meet its self-professed security goals when these are subjected to analysis.”