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A comment on TrueCaller built a billion-dollar caller ID data empire in India. Parent comment

Re:TrueCaller built a billion-dollar caller ID data empire i... by nathancahill on Tuesday March 22, 2022 @04:25PM (#30771048)
Signal is worse, because when you sign up with a phone number, everyone that has your number in their address book gets a notification from Signal that you signed up.
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Re:TrueCaller built a billion-dollar caller ID data empire i... by amitport on Tuesday March 22, 2022 @07:34PM (#30773005)
They claim it is done without revealing these contact to signal.

Assuming they are telling the truth, why would you care that your contacts know you also use signal (like them)?

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