The title pretty much says it all. According to the report:
the service will encrypt all messages, phone calls, photos, and videos moving among [the devices].
Moxie Marlinspike is involved, so they have a chance of getting it right, and no one, even WhatsApp, will be able to know what you”re saying, texting, viewing, &c. (Unless, of course, your widget is running malware, or the opposition can get their mitts on it.)-: They claim this is available on nearly a billion devices—this is a really big deal.
takyon: Alternate links with no Wired paywall: TechCrunch, Washington Post, CNET, Reuters.
(Score: 0) by Anonymous Coward on Wednesday April 06 2016, @09:38PM
That's true, but it misses the point.
Signal makes a call into the GCM binary blob.
Once it starts executing GCM code, there are no guarantees.
It also means you have GCM's various services running on your phone, so even if Signal doesn't directly execute compromised code, your phone may still be compromised because GCM is sitting there in the background doing housekeeping.