this post was submitted on 22 Jun 2025
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[–] Ulrich@feddit.org 13 points 14 hours ago (11 children)

If you join a large WhatsApp group, anyone in that group will have everyone else's phone number, and they can use that to learn far more about everyone's identities.

Does it not give away your identity when you join a Signal group?

[–] blah3166@piefed.social 28 points 14 hours ago (4 children)

Signal defaults to hiding your phone number since the release of user names: https://signal.org/blog/phone-number-privacy-usernames/

[–] Ulrich@feddit.org 1 points 10 hours ago (2 children)

Not worried about my phone number, I'm more worried about my profile.

[–] blah3166@piefed.social 0 points 6 hours ago (1 children)

Your profile, like everything else on Signal, is also end-to-end encrypted. Your name and profile picture do get shared with whoever you chat with, groups or individuals. If you don't want your name and profile picture shared with randos, either don't set them or don't chat with randos.

[–] Ulrich@feddit.org 1 points 5 hours ago

like everything else on Signal, is also end-to-end encrypted

That's fine if one of those ends isn't a public activism group.

If you don't want your name and profile picture shared with randos, either don't set them

I use Signal to talk to people in real life, both personally and professionally. I don't want to message them from some sort of unidentifiable alias.

or don't chat with randos.

That was my point, thank you.

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