Proton Scribe is an intelligent writing assistant integrated within Proton Mail, designed with a privacy-first approach to help users draft and refine email messages, saving time while safeguarding their most sensitive and valuable information. Proton Scribe is built to operate locally, ensuring that user data never leaves their device. Proton has long been dedicated to researching AI technologies that protect user privacy, launching Proton Sentinel in 2023, the first service to use AI for enhanced account protection. Proton Scribe is also open-source, allowing for independent security and privacy audits.