Telegram users began to complain about the ability to sign up for a Premium subscription without SMS confirmations when
As noted, attackers paysubscription from stolen cards. According to users, this happens because Telegram does not provide confirmation of transactions via SMS, it is enough to indicate the card number, CVV code and expiration date. As a result, the cardholder will only receive a notification that the money has been debited.
So far, neither Pavel Durov, nor any other messenger developers have responded to user complaints.