"Mos.app" can't be opened because Apple cannot check it for malicious software

[evannjohnson]

Describe the bug | 问题描述

Attempting to open Mos.app gives the error:

"Mos.app" can't be opened because Apple cannot check it for malicious software. This software needs to be updated. Contact the developer for more information.

To Reproduce | 如何重现

Download "Mos.Versions.3.4.1.dmg", drag "Mos.app" into the Applications folder, and launch Mos.app

Expected behavior | 期望结果

Mos.app opens without an error and does not require being removed from quarantine to run.

Screenshots | 相关截图

System Info | 系统信息:

• OS: macOS Ventura 13.4.1 (c) (22F770820d)
• Version: Mos 3.4.1

[aj-in]

Faced the same issue. what's the fix?

[aj-in]

xattr -d com.apple.quarantine /Applications/Mos.app use the above command

[lorenharrington]

Alternatively: hold down shift, right click and select open, and then confirm you know what you're doing. I've not confirmed it removes the quarantine bit, but it's sometimes quicker this way & achieves the same result.

[mikebrogan]

Alternatively: hold down shift, right click and select open, and then confirm you know what you're doing. I've not confirmed it removes the quarantine bit, but it's sometimes quicker this way & achieves the same result.

Just a minor correction: you don't need to hold down shift. Right clicking or control clicking will achieve the same effect.

[ericswpark]

$ spctl -a -vvv -t install /Applications/Mos.app
/Applications/Mos.app: rejected

Can the app be distributed with notarization? It's currently not signed, which is why macOS refuses to run it without the workaround.

[lukashanak]

Faced the same issue. what's the fix?

thanks, this fixed the issue for me

[abhinav-kashyap-asus]

Just option + click the app and open it It should allow you to use it :) Love this app. Changed the way I use my mouse for me. Was so disappointed with my mouse.

[VladimirCo]

Describe the bug | 问题描述

Attempting to open Mos.app gives the error:

"Mos.app" can't be opened because Apple cannot check it for malicious software. This software needs to be updated. Contact the developer for more information.

To Reproduce | 如何重现

Download "Mos.Versions.3.4.1.dmg", drag "Mos.app" into the Applications folder, and launch Mos.app

Expected behavior | 期望结果

Mos.app opens without an error and does not require being removed from quarantine to run.

Screenshots | 相关截图

System Info | 系统信息:

* OS: macOS Ventura 13.4.1 (c) (22F770820d)

* Version: Mos 3.4.1

the solution is here

[kuthair]

$ spctl -a -vvv -t install /Applications/Mos.app
/Applications/Mos.app: rejected

Can the app be distributed with notarization? It's currently not signed, which is why macOS refuses to run it without the workaround.

This is the correct solution to this problem.

Any chance you guys can notarize your app? I don't think I will continue to use Mos without it being signed. Thanks!

https://developer.apple.com/documentation/security/notarizing_macos_software_before_distribution

[rdourado]

These solutions won't work on a computer managed by a company, where security settings cannot be bypassed using spctl. I wish this app could be signed so I can continue using it. I'm testing other solutions, but MOS (used to) work the best.

[mikebrogan]

I personally have switched over to Mac Mouse Fix. It's paid, but it's low cost and works well. https://macmousefix.com