False news often spreads via public groups, or chats, with potentially fatal effects. READ MORE Founder Pavel Durov says tech is meant to set you free WhatsApp, a rival messaging platform, introduced some measures to counter disinformation when Covid-19 was first sweeping the world. But the Ukraine Crisis Media Center's Tsekhanovska points out that communications are often down in zones most affected by the war, making this sort of cross-referencing a luxury many cannot afford.
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