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Comment by kome | Hacker News Reader

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kome·

You can't use signal without a cellphone... and cellphones are a privacy nightmare.

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for telegram you need a phone number as well, which is bad if not for security, then for privacy reasons

You can use a separate dumbphone for the sms verifications. It's at least much better.

or a VoIP number

a sim card or a reliable dedicated voip number cost money and leak your identity. it is just a bit harder to trace (one more step involved). what telegram could do to allow private use and still avoid spam would be selling phone-less accounts for crypto. And maybe mark these anonymous accounts for other users to make them suspicious of potential scammers.

You can hide your phone numbers from other Telegram users and still chat with them (this is the default). On Signal, anyone you chat with will have your phone number.

While you can hide your phone number, I don't think that is the default.

https://telegram.org/faq#q-who-can-see-my-phone-number

Doesn't your link say exactly what parent said?

Now that I think of it, my comment was unnecessary.

> your number is only visible to people who you've added to your address book as contacts

Means they already have my number.

There is still a tiny difference. I can pick a username and chat with people who have my phone number (without them knowing it is me). It's a very small difference.

Well not quite, since you might have had their number but they not yours. But if you just talk to someone on Telegram, they are not automatically added to your address book, and thus can't see it by default (as I understand it)

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