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U.S. officials urge Americans to use encrypted apps amid unprecedented cyberattack
(www.nbcnews.com)
This is a most excellent place for technology news and articles.
It's probably also good practice to assume that not all encrypted apps are created equal, too. Google's RCS messaging, for example, says "end-to-end encrypted", which sounds like it would be a direct and equal competitor to something like Signal. But Google regularly makes money off of your personal data. It does not behoove a company like Google to protect your data.
Start assuming every corporation is evil. At worst you lose some time getting educated on options.
End to end is end to end. Its either "the devices sign the messages with keys that never leave the the device so no 3rd party can ever compromise them" or it's not.
Signal is a more trustworthy org, but google isn't going to fuck around with this service to make money. They make their money off you by keeping you in the google ecosystem and data harvesting elsewhere.
They do encrypt it and they likely dont send the messages unencrypted.
Likely what's happening is they're extracting keywords to determine what you're talking about (namely what products you might buy) on the device itself, and then uploading those categories (again, encrypted) up to their servers for storing and selling.
This doesn't invalidate their claim of e2ee and still lets them profit off of your data. If you want to avoid this, only install apps with open source clients.
E2EE means a 3rd party cant extract anything in the messages at all, by definition.
If they are doing the above, it's not E2EE, and they are liable for massive legal damages.
Thats not what it means. It means that a third party cannot decrypt it on their servers.
Of course if the "third party" is actually decrypting it on your device, then they can read the messages. I dont know why this is not clear to you.