"The popular messaging app Telegram can leak your IP address if you simply add a hacker to your contacts and accept a phone call from them.
(...) #Telegram boasts 700 million users all over the world, and has always marketed itself as a “secure” and “private” messaging app, even though experts have repeatedly warned that Telegram is not as secure as end-to-end encrypted app #Signal, for example.
The fact that Telegram leaks your #IP address to people in your contacts during a voice call has been known for years, but it’s likely that new, less technical users may not be aware." https://techcrunch.com/2023/10/19/telegram-is-still-leaking-user-ip-addresses-to-contacts/
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