'Wild West' WhatsApp, a rival messaging platform, introduced some measures to counter disinformation when Covid-19 was first sweeping the world. But because group chats and the channel features are not end-to-end encrypted, Galperin said user privacy is potentially under threat. The regulator said it had received information that messages containing stock tips and other investment advice with respect to selected listed companies are being widely circulated through websites and social media platforms such as Telegram, Facebook, WhatsApp and Instagram. Anastasia Vlasova/Getty Images
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