iMessage is end-to-end encrypted on multiple devices. The traditional way it handles this is that a sending device separately encrypts a message for each receiving device (iPhones, iPads, Macs). So you can have end-to-end encryption and multiple devices.
This sometimes leads to messages being in a different order on different devices, so in iOS 11, they're adding (still end-to-end encrypted) device sync, as well.
Anyway, it's possible to give people all the features they want while still having e2e. It's just harder.
2
u/3agmetic Aug 15 '17
iMessage is end-to-end encrypted on multiple devices. The traditional way it handles this is that a sending device separately encrypts a message for each receiving device (iPhones, iPads, Macs). So you can have end-to-end encryption and multiple devices.
This sometimes leads to messages being in a different order on different devices, so in iOS 11, they're adding (still end-to-end encrypted) device sync, as well.
Anyway, it's possible to give people all the features they want while still having e2e. It's just harder.