Message from Apple that can't check download for malicious software

[Leslie5E83]

I just purchased a new Macbook Pro and purchased photoshop lightroom monthly subscription and when I try to download the apps I get this message from Apple:

“Photoshop Installer” can’t be opened because Apple cannot check it for malicious software.

What do I do?

[Nancy OShea]

Did you buy a LR plan directly from Adobe?

Does your computer meet the system requirements to run Creative Cloud + OS + LR?

- https://helpx.adobe.com/creative-cloud/system-requirements.html

Assuming yes to all of the above, first download & install Creative Cloud Desktop App. NOTE:  You need a computer user profile with administrative level permissions to install software.  See link below for details.

https://helpx.adobe.com/download-install/kb/creative-cloud-desktop-app-download.html

[geordie99]

I have the exact same issue.  Problem with the supplied solution is that the CC Desktop App has the very same install issue!

[Test Screen Name]

This sounds like it is an old installer. What web page did you download it from?

[Test Screen Name]

PS some people find they have to right click on the installer and choose Open. Instead of double click. Worth a try. 

[이98A6]

In the case of apps that have not been verified, security must be turned off, but there is also a way to turn off the gatekeeper altogether when it is cumbersome to release security every time.

I solved it like this!

// gatekeeper off
sudo spctl --master-disable

// gatekeeper on
sudo spctl --master-enable

[Kanikas]

Hi 이98A6, 

Thank you for sharing the steps. Hope this is helpful for our usrs. 

Best 
^KS