Bugs and Suggestions

Spammers can easily register and flood channels, groups, etc. Making distributions for other contacts. Also registering with email address is possible with temp mails, so there is no guarantee of identification.

Deleted Account Mar 31, 2021

Alireza

But else Telegram is controlled by mobile operators

Deleted Account

Which kind of control do you mean? Telegram messaging is encrypted fully. What does mobile operators can do? Like other massaging app icluding WhatsApp, it is regular to use phone number for sign up.

Mihail Mar 31, 2021

Without phone number - required pay for 5$. For Spammer with many accounts it is not real, but typical user (as I) can pay this tax.

Мерхольг Ан-Сорвейт Mar 31, 2021

Mobile operators can transfer authorization codes and personal data of the owners of the mobile number for which the telegram account is registered to the special services carrying out attacks on telegrams.

Deleted Account Apr 1, 2021

Mobile operators can know who are using telegram, and tell the government to arrest them

Snep Apr 8, 2021

For all of those saying that you'll have to pay for a phone number, that would ruin both the aspect of privacy because with a transaction there's usually private data attached for the billing process and the argument that people either don't have a (mobile) phone number or share it when you can get SIM cards for a few bucks anyways and thus a new phone number

ＡλＩ May 22, 2021

Agree. there should be a way to signup with an authorized email like Gmail, but if the user who don't registered with phone number, spammed, then the account should be banned easier without mercy!

Eurisito Jun 9, 2021

Also, if the option is implemented, let us add a GPG public key to encrypt the mails automatically before to send it, because mails aren't absolute secure, but more secure than phones.

A you could be out if you lost your number and cannot recover it, also SIM swapping is a threat... Also, you can lost your number with a judicial order to the phone provider, by law they SHOULD give them the number.

If telegram sends the mails encrypted with our GPG public keys, it is impossible to others to enter into our account, even governments. Phone numbers are insecure.

Hexandcube Jul 3, 2021

This is really important, especially if Telegram want's to be an open platform. In many countries (like Poland), you can't just go to the store and grab a pre-paid SIM card. You have to register it with the government with your ID. So you can't really be anonymous on Telegram.

Nao Jul 6, 2021

This is number 1 feature needed for Telegram to be called "secure" and "respecting privacy of the users".
Reasons:
1) There was already dumps with "phone number - username - userID" triplets. I don't know how they was obtained but I found myself in this dump despite the fact that option to hide the phone number was always "never" for me.
So I will just assume this info is public.

2) In some countries you can't legally buy a sim-card without your passport. Mobile operator knows your personal data and so do police, government, etc.
And not only them, the databases of mobile operators is constantly leaked to darknet or even becomes public.
Ironically, you can buy such info on telegram itself :) There are TG contacts who sells private data. You pay with cryptocurrency, write phone number and get passport and other personal data.
So phone number sometimes = passport.

3) Sim-card can be legally or illegally cloned. The person who did this will have access to your contacts chat history (except secret chats) and some other critical info.
AFAIK, two-factor verification password will protect you in this case, but not all people use password because it's optional.
So for most TG users (who doesn't use 2FA and use non-secret-chats) sim card = access to TG account data (chat history, contact list).
...

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