Will this app damage my computer? I've downloaded an application but when I want to open this application it shows an error message saying that it will damage my computer. 

I tried to download the application from multiple sources but it continues to give me the same message. When I try to open the application with my right mouse button it still gives me the same message.



I have the last open beta of OS X El Capitan if that matters. If anyone knows how I can still open it, I would appreciate it. Thanks.
I believe this is GateKeeper doing its thing.

Try slackening off the security a little bit; go to Security &amp; Privacy prefpane, and change Allow apps downloaded from: to a more lax setting (you may need to choose Anywhere, I'm not sure if Atlassian qualify under "identified developers").