encrypted message service
https://ace-wiki.win/index.php/Why_secure_message_encryption_matters_for_everyday_communication
An encrypted message service ensures that only you and the intended recipient can read your conversations, using end-to-end encryption that scrambles messages so even the service provider can't see them. It's like having a private room in a digital city where you can share sensitive info without worrying about eavesdroppers. Apps like Signal and WhatsApp offer this, though not all have the same level of security, so it pays to check their privacy policies.