THREAT REMOVAL

MacOS Cannot Verify Pop-up – How to Remove It

What is MacOS cannot verify pop-up? How to remove MacOS cannot verify message? How to fix your Mac after a MacOS cannot verify window appears?

MacOS cannot verify is a message that appears on Macs each time when you have installed or ran an app, whose original certificate or legitimacy cannot be verified. This pop-up is a sign that your Mac could have become a victim of some sort of adware or other form of unwanted software to be added to your Mac. Read this article to understand the consequences of having MacOS cannot verify message on your Mac.

Threat Summary

NameMacOS Cannot Verify
TypePUA or a Virus for Mac OS
Short DescriptionA pop-up indicating an app or a file with a very low reputation.
SymptomsThe pop-up message to begin appearing on your Mac periodically.
Distribution MethodVia different means, like e-mail spam if malware or software bundling if the file is an adware app.
Detection Tool See If Your System Has Been Affected by malware

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User ExperienceJoin Our Forum to Discuss MacOS Cannot Verify.

MacOS Cannot Verify Pop-up – How Did I Get It and What Does It Do?

The MacOS Cannot Verify Pop-up could spread on your comptuer via one way only – if you have some sort of suspicious file. The main pop-up appears like the following:

If you have a suspicious file on your Mac, it could belong to the following types of risky software or threats:

If such threats enter your Mac, and they are the ones appearing on the MacOS Cannot Verify pop-up, you expose at risk the following:

  • Your data.
  • Your passwords.
  • Your browsing interests and preferences.
  • Your financial information.
  • Pictures.
  • Documents.
  • Videos.
  • Other important data.

And also if the file that appears on MacOS Cannot Verify is actually a virus, you risk even permanent damage to your Mac machine. This is why such files have to immediately be removed.

Remove MacOS Cannot Verify from Your Mac

In order to remove MacOS Cannot Verify from your Mac, we strongly recommend that you follow the removal instructions underneath this article. They contain the necessary steps that are needed for a full and effective removal of this malware. For full removal and if you want to be sure that there are no leftover files created by MacOS Cannot Verify, it is strongly reccomended todownload and run a scan of your mac, using an advanced malware removal software. Such cleaner can help you delete any files that may be harmful for your Mac an make sure they won’t come back.

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Ventsislav Krastev

Ventsislav is a cybersecurity expert at SensorsTechForum since 2015. He has been researching, covering, helping victims with the latest malware infections plus testing and reviewing software and the newest tech developments. Having graduated Marketing as well, Ventsislav also has passion for learning new shifts and innovations in cybersecurity that become game changers. After studying Value Chain Management, Network Administration and Computer Administration of System Applications, he found his true calling within the cybersecrurity industry and is a strong believer in the education of every user towards online safety and security.

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OFFER
REMOVE IT NOW (MAC)
with SpyHunter for Mac
MacOS Cannot Verify may remain persistent on your system and may re-infect it. We recommend you to download SpyHunter for Mac and run free scan to remove all virus files on your Mac. This saves you hours of time and effort compared to doing the removal yourself.
Free Remover allows you, subject to a 48-hour waiting period, one remediation and removal for results found. Read EULA and Privacy Policy

Preparation Phase:

Before starting to follow the steps below, be advised that you should first do the following preparations:

  • Backup your files in case the worst happens.
  • Make sure to have a device with these instructions on standy.
  • Arm yourself with patience.

Step 1: Uninstall MacOS Cannot Verify and remove related files and objects

OFFER
Manual Removal Usually Takes Time and You Risk Damaging Your Files If Not Careful!
We Recommend To Scan Your Mac with SpyHunter for Mac
Keep in mind, that SpyHunter for Mac needs to purchased to remove the malware threats. Click on the corresponding links to check SpyHunter’s EULA and Privacy Policy


1. Hit the ⇧+⌘+U keys to open Utilities. Another way is to click on “Go” and then click “Utilities”, like the image below shows:


2. Find Activity Monitor and double-click it:


3. In the Activity Monitor look for any suspicious processes, belonging or related to MacOS Cannot Verify:

Tip: To quit a process completely, choose the “Force Quit” option.


4. Click on the "Go" button again, but this time select Applications. Another way is with the ⇧+⌘+A buttons.


5. In the Applications menu, look for any suspicious app or an app with a name, similar or identical to MacOS Cannot Verify. If you find it, right-click on the app and select “Move to Trash”.


6. Select Accounts, after which click on the Login Items preference. Your Mac will then show you a list of items that start automatically when you log in. Look for any suspicious apps identical or similar to MacOS Cannot Verify. Check the app you want to stop from running automatically and then select on the Minus (“-“) icon to hide it.


7. Remove any left-over files that might be related to this threat manually by following the sub-steps below:

  • Go to Finder.
  • In the search bar type the name of the app that you want to remove.
  • Above the search bar change the two drop down menus to “System Files” and “Are Included” so that you can see all of the files associated with the application you want to remove. Bear in mind that some of the files may not be related to the app so be very careful which files you delete.
  • If all of the files are related, hold the ⌘+A buttons to select them and then drive them to “Trash”.

In case you cannot remove MacOS Cannot Verify via Step 1 above:

In case you cannot find the virus files and objects in your Applications or other places we have shown above, you can manually look for them in the Libraries of your Mac. But before doing this, please read the disclaimer below:

Disclaimer! If you are about to tamper with Library files on Mac, be sure to know the name of the virus file, because if you delete the wrong file, it may cause irreversible damage to your MacOS. Continue on your own responsibility!

1. Click on "Go" and Then "Go to Folder" as shown underneath:

2. Type in "/Library/LauchAgents/" and click Ok:

3. Delete all of the virus files that have similar or the same name as MacOS Cannot Verify. If you believe there is no such file, do not delete anything.

You can repeat the same procedure with the following other Library directories:

→ ~/Library/LaunchAgents
/Library/LaunchDaemons

Tip: ~ is there on purpose, because it leads to more LaunchAgents.


Step 2: Remove MacOS Cannot Verify – related extensions from Safari / Chrome / Firefox

Remove an extension from Safari and reset it.Remove a toolbar from Google Chrome Remove a toolbar from Mozilla Firefox

1. Start Safari

2. After hovering your mouse cursor to the top of the screen, click on the Safari text to open its drop down menu.

3. From the menu, click on "Preferences"

stf-safari preferences

4. After that, select the 'Extensions' Tab

stf-safari-extensions

5. Click once on the extension you want to remove.

6. Click 'Uninstall'

stf-safari uninstall

A pop-up window will appear asking for confirmation to uninstall the extension. Select 'Uninstall' again, and the MacOS Cannot Verify will be removed.

How to Reset Safari
IMPORTANT: Before resetting Safari make sure you back up all your saved passwords within the browser in case you forget them.

Start Safari and then click on the gear leaver icon.

Click the Reset Safari button and you will reset the browser.

1. Start Google Chrome and open the drop menu

2. Move the cursor over "Tools" and then from the extended menu choose "Extensions"

3. From the opened "Extensions" menu locate the add-on and click on the garbage bin icon on the right of it.

4. After the extension is removed, restart Google Chrome by closing it from the red "X" in the top right corner and start it again.


1. Start Mozilla Firefox. Open the menu window

2. Select the "Add-ons" icon from the menu.

3. Select the Extension and click "Remove"

4. After the extension is removed, restart Mozilla Firefox by closing it from the red "X" in the top right corner and start it again.


Step 3: Scan for and remove MacOS Cannot Verify files from your Mac

When you are facing problems on your Mac as a result of unwanted scripts and programs such as MacOS Cannot Verify, the recommended way of eliminating the threat is by using an anti-malware program. SpyHunter for Mac offers advanced security features along with other modules that will improve your Mac’s security and protect it in the future.


Click the button below below to download SpyHunter for Mac and scan for MacOS Cannot Verify:


Download

SpyHunter for Mac



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