Yeo Messaging is a company that enhances messaging applications by adding a layer of real-time facial verification. This feature aims to confirm that the intended user is the person actually communicating, addressing a gap in current secure messaging apps like WhatsApp and Telegram. If the app doesn't detect the correct face in real-time, it blurs the screen. They also offer a Software Development Kit (SDK) for third parties to integrate their continuous facial recognition technology into their own applications.