How view/edit notes in browser is 100% secure
We have made viewing or editing notes from browser as safe as in your mobile. Inside the mobile app, all notes are stored encrypted with the user's password. The password itself is not stored anywhere so no one else can see your notes even if they gain access to the phone.
In addition, you need to login first using your Google account which acts as a double protection. Your login is forgotten when you close the browser tab or window as well. Here's a diagram of how it all happens -
In addition to encryption, all communication between browser, cloud service and mobile is secured with HTTPS (SSL/TLS). For encryption/decryption, we use AES algorithm with 256 bit keys which provides strongest level of protection.