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ubercow13
on Aug 23, 2019
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A Telegram bug that disclose phone numbers of any ...
You have to have a secure channel to exchange phone numbers too. The code could be communicated simply using a QR code. Other messengers already work this way and it works well.
couchand
on Aug 23, 2019
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Yes, the difference being that a phone number is an established identity mechanism and you likely already know it.
ubercow13
on Aug 25, 2019
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Yes but it's a kind of bad one. There are many ways you can lose or change your phone number. Email address is a better identifier.
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