The Security Service of Ukraine said in a tweet that it was able to effectively target Russian convoys near Kyiv because of messages sent to an official Telegram bot account called "STOP Russian War." Some privacy experts say Telegram is not secure enough In 2018, Russia banned Telegram although it reversed the prohibition two years later. But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. Such instructions could actually endanger people — citizens receive air strike warnings via smartphone alerts.
from de