https://www.reuters.com/article/facebook-outages-markets/whatsapp-outage-hits-trading-in-assets-from-crypto-to-russian-oil-idUSKBN2GV1W9

WhatsApp's nearly six-hour long outage on Monday hit trading of assets from cryptocurrencies to Russian oil, market players said, although a quick shift to alternative platforms such as Telegram limited severe disruption.