When trying to launch MagicDraw on OS X Mountain Lion, the error appears: "MagicDraw.app" is damaged and can't be opened. You should move it to the Trash."
Please note that downloaded installs are not corrupted or damaged and this problem is not related to the MagicDraw application. This issue is related to the new OS X Mountain Lion functionality, "Gatekeeper."
The Gatekeeper functionality, by default, does not allow executing applications that are not from the Apple Store or from Identified Developers.
In order to launch MagicDraw, users can modify the option, which allows executing all the applications from all the providers. For more information on how to do this, go to: http://support.apple.com/kb/HT5290
Note: We are communicating with Apple to solve this issue so that our customers may execute MagicDraw without any problems.