I have a question, what do companies do with your phone number ? can they trace who you are and what you do ?

  • Turbo@lemmy.ml
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    1 year ago

    One thing I would suspect is they leverage third parties and share your phone number to get back additional known data about you or your interests or other activities which other companies have shared. I think in a way it ends up being a connection point for your data across many places.

    • demystify@lemmy.ml
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      1 year ago

      How do you combat this sort of thing? Besides periodically changing your phone number, of course

        • Sternout@feddit.de
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          1 year ago

          This is not possible.

          Most services that require a phone number also verify it via sms.

          Additionally they check so that each number can only be used once, disabling most free sms receivers online.

          • Oh, i never experienced this. My thought is rather, “nobody will call anyway” … that said, perhaps it’s because i’m largely living outside of online buseness. Location: Europe mostly. What busenesses are you talking about, out of interest?

          • VolunTerry@monero.town
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            1 year ago

            Yep. I’ve tried using dummy numbers in the past for things where no phone contact is required for contact and it frequently triggers fraud prevention even if not rendered useless by sms verification before submission.

    • Ricaz@lemmy.ml
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      1 year ago

      Do you have any reason to believe this other than “corporations bad”?