Go to System Preferences > Security & Privacy. For permanent fix for all applications from unidentified developer follow the steps below:ġ. Instead of doing this it’s alway recommended to allow individual applications as stated above. Permanent fix for all applications from unidentified developerįor doing this you have to alter security settings in your Mac OS X, which is not a good idea as it will make your Mac less secure. You can also do the same by control-clicking (right click) on the particular application logo and then select “Open” option followed by again “Open” option to launch it anyway. But as default security settings of GateKeeper has not been altered, you will have to perform the same steps again if you get this issue for another application with unidentified developer. Mac OS X will remember this exception for this particular application. Now on you will able to launch this particular application (Here it’s OpenOffice) without any issue. Click on “Open Anyway” button, followed by “Open” in pop up. There you can see below message “OpenOffice” was blocked from opening because it is not from an identified developer. To fix this, navigate to System Preferences > Security & Privacy.ģ. “OpenOffice” can’t be opened because it is from an unidentified developerĢ.

Here we have tried to launch “Open Office” and we got below error. If you want to add exception for a particular application without changing GateKeeper’s security settings, follow the steps below.ġ.

Fix “can’t be open because it is from an unidentified developer” for a particular application without altering security settings This security feature in Mac OS X is called GateKeeper, which by default blocks all the applications which are not from a verified source or from App Store. If you are trying to launch an application, which is not installed from App Store and the developer of the application is unidentified, then you may get an alert saying “ can’t be opened because it is from an unidentified developer”.

Openoffice for mac app store