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enter image description here

I have selected "App store an identified developers" in the security setting

there is supposed to be an "Allow Anyway" button that appears when I try to open the non-identified app.

However, this button does not appear. See the modal side-by-side with the setting from the settings panel

Jason FB
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    What do you see if you right-click > Open ? – Tetsujin Nov 17 '23 at 17:53
  • The same result: A message saying the app is blocked and offering my only "Cancel" and "Move to Trash". Despite all of the online docs saying that right-click to open will bypass the security quarantine, this appears not to be true any longer for Ventura. – Jason FB Nov 19 '23 at 12:48
  • Where did you download the application from? Providing a link might help others to check for themselves what might be wrong here. – nohillside Nov 19 '23 at 15:09

3 Answers3

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MacOS flags the "This app is damaged" alert when the digital signature is invalid. This is usually the case if the file has been modified in some way after signing; but it could also be an issue with the certificate used to sign the app. (E.g. expired, pulled.)

You should try re-downloading the app; and if that fails, contact the developers.

This is a different issue from a quarantine flag, which usually just alerts the user that the app has recently been downloaded and is from an unknown developer: but you are normally still given the possibility to open it.

If deleting the quarantine flag did indeed fix it, then it could well be a bug, and you should report it to Apple.

benwiggy
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It is because the "Google Chrome for Testing" file is damaged, so it can't be opened. It is not being blocked by security, but the file is corrupted. To un-corrupt the file, I would recommend to re-install the application.

VJ09743
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the only known fix that I have found to this problem is to run this special command to de-quarantine the app

xattr -d com.apple.quarantine /Applications/Google\ Chrome\ for\ Testing.app/

update 2024-02-02 macOS Sonoma 14.1.2 now tells me : xattr: /Applications/Google Chrome for Testing.app/: No such xattr: com.apple.quarantine

however, the actual bug (the absence of the "Allow anyway" button) appears to be fixed in the OS

Jason FB
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  • my sonoma 14.1.2 is now sayingxattr: /Applications/Google Chrome for Testing.app/: No such xattr: com.apple.quarantine – Jason FB Feb 02 '24 at 21:45