The message can't be intercepted in transit, since we are talking about spyware, I assume they get it from the device, hard to defend against that if they have access to your process' memory space.
Surprising that end-to-end encryption doesn't really matter when you get into one of the ends.
>The message can't be intercepted in transit
Lol, so like ... all encryption schemes since the 70s?
Certainly very hard to defend against that when the messenger you're using won't let you use a device you control.