Signal is the world’s most widely used truly private messaging app, and our cryptographic technologies provide extra layers of privacy beyond the Signal app itself. Since launching in 2013, the Signal Protocol—our end-to-end encryption technology—has become the de facto standard for private commu...
A very cool write-up and breakdown of Signal’s expenses
Yes but the difference with every other messenger is that they can’t even see who your message is going to. Due to E2E encryption of contact data.
What remains is the phone number issue. Verifying a phone number is by far the simplest and most effective way to prevent abuse, which is obviously a major issue with any messenger. There’s no reason to disbelieve them when they this is the reason for it.
So: yes, they know who their users are individually. But they cannot know who is talking to who, let alone what is being said.
Yes but the difference with every other messenger is that they can’t even see who your message is going to. Due to E2E encryption of contact data.
What remains is the phone number issue. Verifying a phone number is by far the simplest and most effective way to prevent abuse, which is obviously a major issue with any messenger. There’s no reason to disbelieve them when they this is the reason for it.
So: yes, they know who their users are individually. But they cannot know who is talking to who, let alone what is being said.