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“Unknown Security Breach” pop-up virus. How to remove? (Uninstall guide)

removal by Alice Woods - - | Type: Malware

Do not trust “Unknown Security Breach” alert; it's sent by cyber criminals

Screenshot of "Unknown Security Breach" pop-up virus

“Unknown Security Breach” pretends to be analert from Internet Service Provider that informs about Malware error 895-SYSTEM32.EXE Failure. Malware uses Microsoft’s credentials, provides various error names and provides support number 1-844-346-3716. However, it’s a tech support scam.[1]

This fake message is delivered by a malicious website. Typically various adware programs redirect users to a technical support scam site. These applications usually are installed bundled with freeware. On the affected device, such programs might disturb browsing session with redirects to dangerous or promotional sites and track information about users.

When users end up “Unknown Security Breach” scam site, they learn about computer infection. However, we want to point out that it’s a fake warning. Any dangerous trojan or malware haven’t attacked your device. Thus, you should leave this website without calling fake Microsoft technicians.

Cyber criminals use various computer terms, names of the programs and errors in order to scare victims. The “Unknown Security Breach” virus tells that some “harmful virus” affected the system and caused these problems:

  • missing .net frame work file,
  • Malware Error 895-SYSTEM32.EXE Failure,
  • Error Code 0x214aL,
  • ERROR CODE 0xa297sa,
  • BSOD: DllRegistrationErrorCode: o0acxfasf.

However, none of these issues are real. Cyber criminals just want to create an image that your computer, privacy and sensitive information are in great danger. The fear of losing credit card details, passwords, and other confidential information, might motivate inexperienced computer users to call a provided phone number.

We want to remind that Microsoft does not have a phone support line. What is more, security alerts never appear on Google Chrome, Mozilla Firefox, Microsoft Edge or Internet Explorer. Only security program installed on your PC can report about detect threats, and these alerts appear in the program window.

Thus, you should remove “Unknown Security Breach” pop-up virus as soon as it shows up on your browser. We recommend dedicating this task for Reimage. This anti-malware not only deletes adware that is responsible for redirects to the scam site but protects your machine from similar infections in the future.

Of course, the primary purpose of the ”Unknown Security Breach” removal is stopping annoying activities on the browser. Indeed, redirects to various websites diminish browsing activities. However, the ad-supported program might also deliver aggressive ads that lead to harmful domains and track information about you. Thus, elimination protects your device from dangerous viruses[2] that are lurking on the web.

Redirects to scam website might start after incorrect installation of freeware

According to the recent research data, most of the time various potentially unwanted programs (PUPs) are initiating redirects to “Unknown Security Breach” tech support scam website. These ad-supported applications usually sneak into the device via software bundle.

Any freeware or shareware can be a software package. Thus, before installing new programs, you have to check whether it’s a single program or not by choosing “Advanced” or “Custom” installation method. Keep in mind that “Recommended” or “Quick” options do not include such feature.

During the installation, you might discover the checkbox with pre-selected additional applications. Unmark them all. It prevents them from entering the system and causing problems on the computer.

Unfortunately, the majority of computer users in America, China,[3] and European countries rely on Quick installation method. We want to point out that correct software installation takes less time than a removal of PUPs or malware.

Instructions for “Unknown Security Breach” virus elimination

There are two ways how you can remove “Unknown Security Breach” virus. However, none of them requires calling the provided number. In order to get rid of redirects to this scam site, you have to remove adware that causes this problem.

At the end of the article, you will find manual “Unknown Security Breach” removal instructions. By following them, you will be able to find the PUP and its related components. Once you uninstall them, you should also reset each of your web browsers in order to delete tracking cookies.

You can remove virus damage automatically with a help of one of these programs: Reimage, Malwarebytes MalwarebytesCombo Cleaner, Plumbytes Anti-MalwareMalwarebytes Malwarebytes. We recommend these applications because they detect potentially unwanted programs and viruses with all their files and registry entries that are related to them.

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If you failed to remove virus damage using Reimage, submit a question to our support team and provide as much details as possible.
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More information about this program can be found in Reimage review.

If you decided to select another anti-spyware, uninstall Reimage from your computer.
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Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Malwarebytes.
Alternative Software
Different security software includes different virus database. If you didn’t succeed in finding malware with Reimage, try running alternative scan with Combo Cleaner.

To remove “Unknown Security Breach” pop-up virus, follow these steps:

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Unknown Security Breach” pop-up from Windows systems

Follow the instructions below to remove “Unknown Security Breach” malware from Windows OS.

  1. Click Start Control Panel Programs and Features (if you are Windows XP user, click on Add/Remove Programs). Click 'Start -> Control Panel -> Programs and Features' (if you are 'Windows XP' user, click on 'Add/Remove Programs').
  2. If you are Windows 10 / Windows 8 user, then right-click in the lower left corner of the screen. Once Quick Access Menu shows up, select Control Panel and Uninstall a Program. If you are 'Windows 10 / Windows 8' user, then right-click in the lower left corner of the screen. Once 'Quick Access Menu' shows up, select 'Control Panel' and 'Uninstall a Program'.
  3. Uninstall “Unknown Security Breach” pop-up and related programs
    Here, look for “Unknown Security Breach” pop-up or any other recently installed suspicious programs.
  4. Uninstall them and click OK to save these changes. Right click on each of suspicious entries and select 'Uninstall'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Get rid of “Unknown Security Breach” pop-up from Mac OS X system

  1. If you are using OS X, click Go button at the top left of the screen and select Applications. Cick 'Go' and select 'Applications'
  2. Wait until you see Applications folder and look for “Unknown Security Breach” pop-up or any other suspicious programs on it. Now right click on every of such entries and select Move to Trash. Click on every malicious entry and select 'Move to Trash'
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Eliminate “Unknown Security Breach” pop-up from Internet Explorer (IE)

Adware may have installed suspicious entries to Internet Explorer. These guidelines show how to uninstall them.

  1. Remove dangerous add-ons
    Open Internet Explorer, click on the Gear icon (IE menu) on the top right corner of the browser and choose Manage Add-ons. Click on menu icon and select 'Manage add-ons'
  2. You will see a Manage Add-ons window. Here, look for “Unknown Security Breach” pop-up and other suspicious plugins. Disable these entries by clicking Disable: Right click on each of malicious entries and select 'Disable'
  3. Change your homepage if it was altered by virus:
    Click on the gear icon (menu) on the top right corner of the browser and select Internet Options. Stay in General tab.
  4. Here, remove malicious URL and enter preferable domain name. Click Apply to save changes. Delete malicious URL, enter your desired domain name and click 'Apply' to save changes
  5. Reset Internet Explorer
    Click on the gear icon (menu) again and select Internet options. Go to Advanced tab.
  6. Here, select Reset.
  7. When in the new window, check Delete personal settings and select Reset again to complete “Unknown Security Breach” pop-up removal. Go to 'Advanced' tab and click on 'Reset' button. Now select 'Delete personal settings' and click on 'Reset' button again
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Uninstall “Unknown Security Breach” pop-up virus from Microsoft Edge

It's important to remove questionable add-ons and reset Microsoft Edge in order to forget redirects to scam sites.

Reset Microsoft Edge settings (Method 1):

  1. Launch Microsoft Edge app and click More (three dots at the top right corner of the screen).
  2. Click Settings to open more options.
  3. Once Settings window shows up, click Choose what to clear button under Clear browsing data option. Go to Settings and select 'Choose what to clear'
  4. Here, select all what you want to remove and click Clear. Select 'Clear' button
  5. Now you should right-click on the Start button (Windows logo). Here, select Task Manager. Open the start menu and select 'Task Manager'
  6. When in Processes tab, search for Microsoft Edge.
  7. Right-click on it and choose Go to details option. If can’t see Go to details option, click More details and repeat previous steps. Right-click 'Microsoft Edge' and select 'Go to details' Select 'More details' if 'Go to details' option fails to show up
  8. When Details tab shows up, find every entry with Microsoft Edge name in it. Right click on each of them and select End Task to end these entries. Find Microsoft Edge entries and select 'End Task'

Resetting Microsoft Edge browser (Method 2):

If Method 1 failed to help you, you need to use an advanced Edge reset method.

  1. Note: you need to backup your data before using this method.
  2. Find this folder on your computer: C:\Users\%username%\AppData\Local\Packages\Microsoft.MicrosoftEdge_8wekyb3d8bbwe.
  3. Select every entry which is saved on it and right click with your mouse. Then Delete option. Go to Microsoft Edge folder on your computer, right-click every entry and click 'Delete'
  4. Click the Start button (Windows logo) and type in window power in Search my stuff line.
  5. Right-click the Windows PowerShell entry and choose Run as administrator. Find Windows PowerShell, right-click it and select 'Run as administrator'
  6. Once Administrator: Windows PowerShell window shows up, paste this command line after PS C:\WINDOWS\system32> and press Enter:
    Get-AppXPackage -AllUsers -Name Microsoft.MicrosoftEdge | Foreach {Add-AppxPackage -DisableDevelopmentMode -Register $($_.InstallLocation)\AppXManifest.xml -Verbose}
    Copy and paste a required command and press 'Enter'

Once these steps are finished, “Unknown Security Breach” pop-up should be removed from your Microsoft Edge browser.

WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Delete “Unknown Security Breach” pop-up from Mozilla Firefox (FF)

”Unknown Security Breach” pop-up virus may have come in the form of a browser extension. Follow the steps to get rid of it:

  1. Remove dangerous extensions
    Open Mozilla Firefox, click on the menu icon (top right corner) and select Add-ons Extensions. Click on menu icon and select 'Add-ons'
  2. Here, select “Unknown Security Breach” pop-up and other questionable plugins. Click Remove to delete these entries. Select 'Extensions' and look for malicious entries. Click 'Remove' to get rid of each of them
  3. Reset Mozilla Firefox
    Click on the Firefox menu on the top left and click on the question mark. Here, choose Troubleshooting Information. Click on menu icon and then on '?'. Select 'Troubleshooting Information'
  4. Now you will see Reset Firefox to its default state message with Reset Firefox button. Click this button for several times and complete “Unknown Security Breach” pop-up removal. Click on 'Reset Firefox' button for a couple of times
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Erase “Unknown Security Breach” pop-up from Google Chrome

You might find a few Google Chrome extensions that you do not remember installing. They might be responsible for “Unknown Security Breach” tech support scam. The instructions below will guide you through the virus removal.

  1. Delete malicious plugins
    Open Google Chrome, click on the menu icon (top right corner) and select Tools Extensions. Click on menu icon. Select 'Tools' and 'Extensions'
  2. Here, select “Unknown Security Breach” pop-up and other malicious plugins and select trash icon to delete these entries. Look for malicious entries and delete each of them by clicking on the Trash bin icon
  3. Click on menu icon again and choose Settings Manage Search engines under the Search section. When in 'Settings', select 'Manage search engines...'
  4. When in Search Engines..., remove malicious search sites. You should leave only Google or your preferred domain name. Click 'X' to remove malicious URLs
  5. Reset Google Chrome
    Click on menu icon on the top right of your Google Chrome and select Settings.
  6. Scroll down to the end of the page and click on Reset browser settings. When in 'Settings', scroll down to 'Reset browser settings' button and click on it
  7. Click Reset to confirm this action and complete “Unknown Security Breach” pop-up removal. Click on 'Reset' button to complete your removal
WindowsMac OS XInternet ExplorerMicrosoft EdgeFirefoxGoogle ChromeSafari

Remove “Unknown Security Breach” pop-up from Safari

  1. Remove dangerous extensions
    Open Safari web browser and click on Safari in menu at the top left of the screen. Once you do this, select Preferences. Click on 'Safari' and select 'Preferences'
  2. Here, select Extensions and look for “Unknown Security Breach” pop-up or other suspicious entries. Click on the Uninstall button to get rid each of them. Go to 'Extensions' and uninstall malicious add-ons
  3. Reset Safari
    Open Safari browser and click on Safari in menu section at the top left of the screen. Here, select Reset Safari.... Click on 'Safari' and select 'Reset Safari...'
  4. Now you will see a detailed dialog window filled with reset options. All of those options are usually checked, but you can specify which of them you want to reset. Click the Reset button to complete “Unknown Security Breach” pop-up removal process. Select all options and click on 'Reset' button

About the author

Alice Woods
Alice Woods - Likes to teach users about virus prevention

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