The Adobe AIR framework wording on their installation box that seems a little alarming. The reason that they put this up the warning is because they make it so easy to install software with just a single click on a website. They wanted to make sure that you didn't get anything installed on your system without you being fully aware. You can see that the code is signed by the Lunar Software certificate and our identity has been verified so you are not getting the software from an un-trusted source. EarthBrowser v3 is actually safer than version 2 was due to the Adobe sandbox environment.