Popular service Pushbullet has implemented end-to-end encryption on their service overnight for Notification Mirroring, Universal copy & paste, and SMS.
The update comes after many requests were made for the additional layer of security, with a number of users unwilling to trust the service without it. The End-to-End encryption is supported in the Pushbullet Android app from v16.5.4+, Chrome v264+, and their Windows desktop app v360+. AES-256 encryption is used with with GCM authentication and passwords are not stored, but derived from an encryption key using PBKDF2.
The full list of updates in the Android app is listed in the Google Play What’s New listing for v16.5.4:
The Pushbullet V16.5.4 update is available now from Google Play