How to open Damaged apps in OS X

Sometimes after downloading an app you get this message when trying to open it:

"AppName" is damaged and can’t be opened. You should move it to the Bin.

This is a protective mechanism that is letting you know an app's code signature has been altered and therefore may do something not originally designed for (e.g. it may have been altered to include a keylogger). You should actually bin it for safety but if you're 100% sure it's fine and you absolutely need to open it, try these fixes:


FIX 1

  1. Open a Terminal.
  2. Enter the following, substituting “AppName” with the real name of the app:

    xattr -cr /Applications/AppName.app

  3. Press Enter to run the command.
if it's not in Applications you can simply drag the app into the terminal window to get it's path


FIX 2

  1. Open a Terminal.
  2. Enter the following Command.

    sudo spctl --master-disable

  3. Then hit enter again and Run your app.
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