WhatsApp clarifies privacy practices after surge in Signal and Telegram users - The Verge

https://www.theverge.com/2021/1/12/22226792/whatsapp-privacy-policy-response-signal-telegram-controversy-clarification

The company is trying to contain fallout over a privacy policy update

the change is designed to outline how businesses who use WhatsApp for customer service may store logs of its chats on Facebook servers.