I have an app on the market called Phone To Computer: https://market.android.com/details?id=com.raz.ptc Application Thread Located Here I recently was left a negative comment that brings up security concerns that I could be possibly logging data such as passwords or other important information as well as giving myself direct access to their computer. My software is two parts. There is a phone client as well as a server client. I believe that this concern is a logical one. I would probably be a little concerned with this application as well if wasn't my own. My question is if there is anyway to address this concern with out making my coding open source. I cannot think of a way that I can let user's know that I am not stealing their information or even collecting it with out allow people to browse my source code. If anyone has any ideas about how to go about assuring people other than asking them to take my word for it would be great! Thank you in advance.