Fix «App is Damaged Can't Be Opened» Error Messages in Mac OS X
Tags :Some Mac users have discovered they are unable to open some applications downloaded from the Mac App Store. When attempting to open an impacted app in OS X, a message stating "Name.app is damaged and can't be opened. Delete Name.app and download it again from the App Store.
Source: http://osxdaily.com/2015/11/12/fix-app-is-damaged-cant-be-opened-error-messages-in-mac-os-x/ via #ifttt