Send the following on WhatsApp
Continue to ChatSignal, WhatsApp and Telegram: Big security differences between messaging apps https://beforeits.news/signal-whatsapp-and-telegram-big-security-differences-between-messaging-apps.html
Signal, WhatsApp and Telegram: Big security differences between messaging apps https://beforeits.news/signal-whatsapp-and-telegram-big-security-differences-between-messaging-apps.html