With the advent of apps like Signal and Telegram and users steadily migrating to these private messaging apps, the polarity of perspectives is now clearer than ever. On the one hand, apps like WhatsApp are boldly enacting privacy agreements in order to force their user base to keep using them; while on the other hand, apps like Signal and Telegram are embracing the need for privacy and encryption more strongly than ever.

This intention is also deeply reflected in their actions, be it Telegram’s funding methods or Signal’s encryption features. In this article, we will dive deeper into one such feature of Signal that definitely gives it an edge over any other app in the market: Sealed Sender.

Before we explain the Sealed Sender feature, it's important to have a basic understanding of the technical aspects of how a messaging app works.

In any messaging app, there are two very crucial pieces of data that travel from one point to another. First, there is the content of the message itself, which contains the private conversation between the sender and the recipient. Second, there is the metadata that the app needs, which contains the sender’s location, the sender’s details, and other special information. The first piece of data is usually private, with end-to-end encryption so that the messaging app does not breach your private information.