Signal v7.0.0 with phone number privacy

Re:Signal v7.0.0 with phone number privacy by shp0ngle on Sunday February 18, 2024 @02:01PM (#39421971)

They seem to actually confirm it themselves, which I didn't know.

> We use third-party services to send a registration code via SMS or voice call in order to verify that the person in possession of a given phone number actually intended to sign up for a Signal account. This is a critical step in helping to prevent spam accounts from signing up for the service and rendering it completely unusable—a non-trivial problem for any popular messaging app.

From their blogpost

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Re:Signal v7.0.0 with phone number privacy by tptacek on Sunday February 18, 2024 @02:11PM (#39422065)

I'm sure they absolutely do use it as a spam signal. You use what you've got. But that's not why they use phone number identifiers, which is a design decision they and others have written ad nauseam about.

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