[Solved] macOS Cannot Verify That This App Is Free from Malware - MiniTool

Have Mac users encountered the prompt " macOS cannot verify that this application has no malware " when running the application? This article will provide solutions to this problem.

Why does Mac show "macOS can't verify that this application has no malware"?

When you try to open an application on your Mac, this notification is sometimes displayed: "macOS cannot verify that this application has no malware". The full message for this notification may be as follows:

• The application cannot be opened because the developer cannot be verified. macOS cannot verify that this application has no malware.
• The application cannot be opened because it comes from an unknown developer. macOS cannot verify that this application has no malware.

Why does this notification appear? The reasons are as follows:

macOS contains a technology called Gatekeeper, designed to ensure that only trusted software can run on your Mac. When you install Mac applications, plug-ins, and installer packages from outside the App Store, macOS checks the developer ID signature to verify that the software comes from the identified developer and that the software has not been tampered with.

However, if you try to install an app that is not signed by an identified developer and not notarized by Apple, you will receive a warning that "macOS cannot verify that this app has no malware."

Is it safe to open an application that cannot be verified by macOS?

If the app is not notarized, Apple cannot scan the app for known malware. Running unsigned and notarized software may expose your computer and personal information to malware, which can harm your Mac or endanger your privacy.

However, if you understand the situation and trust the application publisher, you can open and install the application as you like.

How to solve the problem of "Unable to Verify Developers"

To resolve the issue that "macOS cannot verify that this application has no malware", you can try the following two methods.

Method 1: Use Control-click

1. Open the Finder menu on your Mac system.
2. Click Go to > Apps .
3. Select the application that caused the "macOS cannot verify this application has no malware" error.
4. Control -click the application simultaneously.
5. Select Open from the context menu.
6. You will receive this warning: "The application is downloaded from the internet. Are you sure you want to open it?" Click Open to confirm. Now you can open this application.

Method 2: Forced to open

1. Click the Apple menu icon and select System Settings .
2. Click Security & Privacy , and then click the General tab.
3. You should see a still open button for unverified applications. This option is only reserved for about an hour after you try to open a blocked application.
4. Click the Still Open button and enter your username and password.
5. You will see this warning message: "macOS cannot verify the developer of the application. Are you sure you want to open it?" Click Open to force the application to run.

Summarize

Hope the above information can help you solve the problem.

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