Add a new M3 - Insecure Communication mobile app

[Krlier]

Motivation

SecDevLab's goal is to provide examples of how security vulnerabilities could be fixed, but we still don't have any examples of Insecure Communication from OWASP's 2016 Mobile Top 10.

It would be great if

We had an app illustrating this vulnerability and how it could be exploited by an attacker.

What we expect

The new app must have a complete README.md with all the steps on how to get the environment ready to run it, how it can be installed, and how an attacker could compromise it.

The app's README.md should be similar to the existing mobile apps, such as this one.

Note: The app doesn't need to be written in flutter/dart.

Tips

• M3 - Insecure Communication
• Design beautiful apps - Flutter