How to Fix 'macOS cannot verify that this app is free from malware'
The 'macOS cannot verify that this app is free from malware' Error does not necessarily mean that you have malware on your device – it is simply a warning telling you that Mac's security features are unsure of the software's origin. Typically, the best course of action in this scenario would be to research the download further, and avoid installing it for now. However, keep in mind that the 'macOS cannot verify that this app is free from malware' warning often turns out to be a false positive.
In most cases, the 'macOS cannot verify that this app is free from malware' error occurs when interacting with apps from unknown developers, that are also not available in the App Store. In these situations, we suggest that you install and run a reputable macOS security tool to ensure that you are not interacting with malware. If it does not find anything shady about your file/installer, then it is safe to proceed and run it.
How to Fix 'macOS cannot verify that this app is free from malware' Error?
If you are 100% certain that your file is safe, then here is how to bypass the message. We advise you to only this is if you have reputable antivirus software installed, and if you have a guarantee that the file is safe to use.
Find the file in Finder and hold control and left-click the applications. This will open a prompt where you need to select Open. This will bypass the 'macOS cannot verify that this app is free from malware' Error, and allow you to run the file.