5 reasons I password-protect email in Proton Mail for an extra layer of encryption

Regarding security and privacy, Proton is a steadfast name to remember. The service provides end-to-end encryption for all its products with a zero-knowledge architecture, meaning your data and activities are truly private. The service boasts that even Proton employees can’t see your data. However, don’t start using Proton Mail thinking you are getting all the security and encryption possible. The Mail app must work with other less secure and private services, such as Gmail, Outlook, and whatever your doctor’s office uses.