Cannot open product. Message reads Apple cannot check it for malicious software. Software needs to be updated. Contact the developed for more information.

I also received this today when downloading and attempting to open. 

When opening TurboTax for Mac after installation, you may see the TurboTax checkmark icon bounce a few times before disappearing from the menu bar. This can be accompanied by the error: TurboTax 20xx can't be opened because Apple cannot check it for malicious software.

Please click TurboTax for Mac won't open when installed for help in solving this problem.