While Telegram isn’t giving up its ongoing legal battle with United States regulators to launch its TON blockchain project, some online perpetrators are taking advantage of the messenger’s popularity to expose millions of user records of third-party versions of Telegram app. Per an investigation by cybersecurity firm Comparitech and security researcher Bob Diachenko, at least 42 million Iranian “Telegram” usernames and phone numbers were leaked via unofficial Iranian-made versions of Telegram, while real Telegram is banned in the country.
Source: Cointelegraph