U.S. House tells staffers not to use Meta's WhatsApp
1. Meta fights WhatsApp ban from government devices due to security concerns. 2. U.S. House staff must remove WhatsApp from their devices. 3. Meta disputes the CAO's security concerns about WhatsApp. 4. WhatsApp claims higher security than approved alternative apps. 5. Meta is facing an antitrust case regarding WhatsApp and Instagram.