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." WhatsApp, a rival messaging platform, introduced some measures to counter disinformation when Covid-19 was first sweeping the world. For example, WhatsApp restricted the number of times a user could forward something, and developed automated systems that detect and flag objectionable content. Oleksandra Matviichuk, a Kyiv-based lawyer and head of the Center for Civil Liberties, called Durov’s position "very weak," and urged concrete improvements. Perpetrators of such fraud use various marketing techniques to attract subscribers on their social media channels.
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