1) As a paid user, I always want the privacy and security of my data. I may talk business deals over the app, and I don't want anyone else to read it. A small f

1) As a paid user, I always want the privacy and security of my data. I may talk business deals over the app, and I don't want anyone else to read it. A small fault on the server can leak the entire database of my business conversation. 2) As a founder, I will include security as a primary function. Because people want to ensure that their conversations are secure. Also, "security" is the highlight when I invite customers and investors. I strongly suggest to include data privacy and security. It is important for an app where people discuss important stuff.