Securitycheck.network: what it is and how to remove it
Securitycheck.network is a tech support scam portal targeting iPhones. When people open the page, they see a warning that their cell phones are infected with four (numbers might differ for every user) viruses and need to download a shady "My Security" app to remove them.
Facts checked October 6, 2026. Removal steps tested on Windows 11 (26H2) and checked against Microsoft's and the browser makers' current documentation. Sections marked as our earlier report are the original text: they describe the threat as it was then and have not been reviewed since. The 2026 status, the removal steps and the questions are current.
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Securitycheck.network: summary
| Distribution | Fake Flash installers, deceptive ads, software bundles, freeware |
|---|---|
| Damage | Forced software might be malicious, which might lead to privacy and security issues |
| name | Securitycheck.network |
| Type | iPhone virus, iOS malware, tech support scam |
| Affected devices | Any device running iOS |
| Fake claim | Tech scam website states that visitor device is infected with numerous viruses |
| Removal | Scan the PC with security software to find and remove the malware and anything installed with it. Fortect scans Windows for malware and repairs the system files and settings it damaged. Remove it nowTo use the full-featured product, you have to purchase a license for Fortect. The scan is free. |
Show 8 more facts
| IP address | 172.67.217.81 |
|---|---|
| Purpose | Install shady software, potentially PUPs |
| Symptoms | Redirects, fake error messages |
| Detection names | No Microsoft detection name is known |
| Name | Securitycheck.network |
| Evidence | 4 write-ups by security sites; details still limited |
| First seen | 23 February 2021 |
| Facts checked | 6 October 2026 |
What the Securitycheck.network pop-up looks like
You iPhone has been infected with the viruses (4)!
AppleCare
Protection plan
If not resolved immediately, the viruses could block the mobile phone, SIM card and damage and delete all important files.
To remove the virus immediately:
Step 1: Click the button below.
Step 2: Download the "My Security" on next page to completely eliminate the virus ..
Important: Please act in 59 seconds.
remove viruses
I do not want to repair my device.
Is the Securitycheck.network warning real?
From our report of Feb 2021 · not reviewed since
- Scan your iPhone or iPad with trustworthy anti-malware software to remove any cyberthreats
- Your device files and settings might have been messed up.
- Revert all changes and wipe tracking cookies by using the powerful and free optimizer
What the Securitycheck.network scammers want
From our report of Feb 2021 · not reviewed since
Securitycheck.network – a website developed to trick iPhone users into downloading or purchasing rogue software
Securitycheck.network is a tech support scam portal targeting iPhones.
When people open the page, they see a warning that their cell phones are infected with four (numbers might differ for every user) viruses and need to download a shady "My Security" app to remove them. If this phishing site opens up out of the blue, that could mean you have an adware infection on your iPhone. Please note one crucial thing - the site claims are simply not true.
Securitycheck.network scam website is developed to force the installation of a more than a questionable app in "My Security". This software will probably be a fake AV tool that would display false-positive results to prove useful, adware, or another potentially unwanted program (PUP).
It doesn't matter if you visited this tech scam site after clicking on a deceptive ad willingly or were redirected to it - please don't click any buttons on it. Since you came to us for help, we'll inform you how this type of site operates, what causes redirections to it, and how to remove it.
Tech support scams have been on for decades. They can be developed to trick Windows, macOS, Android, iOS users. These phishing pages usually claim that numerous and various infections have been detected and that the device user usually has two options:
When option one is taken, there are various outcomes. Threat actors could charge an enormous amount of money for the call; ask for remote access to eliminate the threats, and either do nothing and ask for a reward or install hazardous malware; copy, delete, encrypt personal files; and other mischievous deeds.
With the second option, users are forced to install worthless software such as Advanced Mac Tuneup, Mac Auto Fixer, Mac Tweaker, Mac Mechanic, and other potentially unwanted programs that would do absolutely no good. Please remember that no website is able to identify a virus infection. These are plain lies to push worthless apps.
Securitycheck.network doesn't provide any options apart from installing shady security software. As mentioned before, it could generate false-positive results, meaning it could find infections that aren't there and force you to buy a licensed version to remove those imaginary threats.
Securitycheck.network error message shown on iPhones states:
If you see this Securitycheck.network phishing message on your cell phone, please don't panic as it is simply not true. Your iPhone may have adware or other PUP infections causing redirects to this tech support scam website. And it can be easily removed with proper security tools.
If you want to remove Securitycheck.network, adware, browser hijackers, malware, and any other suspicious files, download the trustworthy and free anti-malware tools like or . They will detect all threats automatically within minutes and eliminate them.
Various phishing and mischievous websites drop tons of tracking cookies that slow down your device and might lead to privacy issues. Therefore, cybersecurity researchers highly recommend using the clean-up tool right after Securitycheck.network removal is finished.
- call a given tech support number immediately,
- install software that would eliminate the threats.
From our report of Feb 2021 · not reviewed since
Don't believe deceptive ads and avoid software bundles to keep your devices clean and virus-free
Potentially unwanted program developers use many tricks to distribute their malicious creations.
Our research suggests that software or freeware bundles and deceptive ads are among the most popular techniques they use to infect devices of unaware, gullible people.
Software bundles usually contain installers for more than two apps. A conducted research has revealed that one of the most popular software vendors had PUP in 62% of 50 of its most popular downloads. So the next time you want to download something from a third-party vendor, please think twice.
The whole trick is that all apps in the bundle are preselected for installation. Hence as soon as you click the Standard/Quick/Recommended installation button, all programs from the pack are installed. If you can't live without an app that's only available through a bundle, choose the Advanced/Custom mode and deselect all other software from installation.
Another sure way to get your computer or cell phone infected with a PUP is by believing a too good to be true ads and clicking on them.
Please note that ads telling you that an app will boost your device performance by tenfold or increase download speed by a few hundred percent are pure lies. These apps will slow down your device, show intrusive ads, force you to buy worthless licensed versions, and so on.
How to get rid of the Securitycheck.network pop-up
The warning is a web page and your PC is not infected by it.
Close it, then remove what keeps bringing it back.
Step 1: Close the page without touching its buttons
Press Ctrl + Shift + Esc to open Task Manager, select the browser on Processes and click End task: buttons on the page, including Close and Cancel, can trigger downloads or more pop-ups. When you reopen the browser, do not restore the previous tabs.
Warning: Never call a number shown in a browser warning; Microsoft and antivirus companies do not put phone numbers in warnings.
If the page opens again by itself, notifications or an extension are bringing it back. Task Manager works the same in Windows 11 and Windows 10.
Full procedure with screenshots: Close a frozen app (Task Manager, Force Quit) On uGetFix
Step 2: Scan the PC, then run the offline scan
A scan finds the parts of Securitycheck.network that the manual steps cannot see. In Windows Security > Virus & threat protection > Scan options, start a Full scan and quarantine what it reports.
Follow it with Microsoft Defender Antivirus (offline scan) > Scan now, which restarts the PC and checks the disk while Windows and the malware are not running.
It takes about 15 minutes and works the same in Windows 11 and Windows 10. If either scan finds something, run the full scan again after removal until it comes back clean.
Windows 11: Windows Security > Virus & threat protection > Scan options. Full procedure with screenshots: Run a Microsoft Defender Offline scan
Instructions for each browser and system
The detailed steps for every browser and system this guide covers. Open the one you use.
Remove from Google Chrome
Delete malicious extensions from Google Chrome:
- Open Google Chrome, click on the Menu (three vertical dots at the top-right corner) and select More tools > Extensions.
- In the newly opened window, you will see all the installed extensions. Uninstall all suspicious extensions related to the unwanted program by clicking Remove.
Clear cache and web data from Chrome:
- Click on Menu and pick Settings.
- Under Privacy and security, select Clear browsing data.
- Select Browsing history, Cookies and other site data, as well as Cached images and files.
- Click Clear data.
Change your homepage:
- Click menu and choose Settings.
- Look for a suspicious site in the On startup section.
- Click on Open a specific or set of pages and click on three dots to find the Remove option.
Reset Google Chrome:
If the previous methods did not help you, reset Google Chrome to eliminate all the unwanted components:
- Click on Menu and select Settings.
- In the Settings, scroll down and click Advanced.
- Scroll down and locate Reset and clean up section.
- Now click Restore settings to their original defaults.
- Confirm with Reset settings.
Remove from Mozilla Firefox (FF)
Remove dangerous extensions:
- Open Mozilla Firefox browser and click on the Menu (three horizontal lines at the top-right of the window).
- Select Add-ons.
- In here, select the unwanted extension and click Remove.
Reset the homepage:
- Click three horizontal lines at the top right corner to open the menu.
- Choose Settings.
- Under Home, set your preferred homepage and new tab settings.
Clear cookies and site data:
- Click Menu and pick Settings.
- Go to Privacy & Security section.
- Scroll down to locate Cookies and Site Data.
- Click on Clear Data...
- Select Cookies and Site Data and Temporary cached files and pages, then click Clear.
Reset Mozilla Firefox
If clearing the browser as explained above did not help, reset Mozilla Firefox:
- Open Mozilla Firefox browser and click the Menu.
- Go to Help and then choose Troubleshooting Information.
- Under Give Firefox a tune up section, click on Refresh Firefox...
- Once the pop-up shows up, confirm the action by pressing on Refresh Firefox.
Delete from Safari
Remove dangerous extensions:
- Open Safari, click Safari in the menu at the top-left of the screen, and select Preferences.
- Go to the Extensions tab, look for any suspicious entries, and click Uninstall to remove them.
Clear history and website data:
- Click Safari in the menu and pick Clear History.
- Set Clear to all history and confirm with Clear History.
Reset Safari:
- Click Safari in the menu and select Preferences > Advanced.
- Enable Show Develop menu in menu bar.
- From the menu bar, click Develop and select Empty Caches.
Delete from macOS
Remove the unwanted application:
- From the menu bar, select Go > Applications.
- In the Applications folder, look for any suspicious entries, then drag them to Trash (or right-click and pick Move to Trash).
Delete leftover files and folders:
- Select Go > Go to Folder.
- Enter /Library/Application Support and remove any suspicious folders related to the unwanted program.
- Repeat the same check in the /Library/LaunchAgents and /Library/LaunchDaemons folders, deleting any suspicious entries.
- Finally, empty the Trash to permanently remove the leftovers.
Do not let government spy on you
The government has many issues in regards to tracking users' data and spying on citizens, so you should take this into consideration and learn more about shady information gathering practices.
Avoid any unwanted government tracking or spying by going totally anonymous on the internet.
You can choose a different location when you go online and access any material you want without particular content restrictions. You can easily enjoy internet connection without any risks of being hacked by using VPN.
Control the information that can be accessed by government any other unwanted party and surf online without being spied on. Even if you are not involved in illegal activities or trust your selection of services, platforms, be suspicious for your own security and take precautionary measures by using the VPN service.
Backup files for the later use, in case of the malware attack
Computer users can suffer from data losses due to cyber infections or their own faulty doings.
Ransomware can encrypt and hold files hostage, while unforeseen power cuts might cause a loss of important documents. If you have proper up-to-date backups, you can easily recover after such an incident and get back to work. It is also equally important to update backups on a regular basis so that the newest information remains intact - you can set this process to be performed automatically.
When you have the previous version of every important document or project you can avoid frustration and breakdowns. It comes in handy when malware strikes out of nowhere. Use for the data restoration process.
From our report of Feb 2021 · not reviewed since
Remove Securitycheck.network virus from iPhone with a proper security tool
Securitycheck.network redirect may be caused by more than one thing.
You might have clicked a deceptive ad, pressed a hyperlink on a social media platform, redirected to it because of a potentially unwanted program infection, and so on and so forth. The most important thing is not to believe its false claims and not download the shady promotional app.
You can remove Securitycheck.network and any malicious software causing redirects by scanning your device with a legitimate anti-malware agent. A proper tool will identify any threats, isolate and quarantine them, and let you decide what you want to do next. You should, of course, eliminate all suspicious files and software.
Once an appropriate security tool is done with Securitycheck.network removal, you should take care of tracking cookies and altered system settings. You can do that manually or by entrusting this task to an all-in-one optimizer that would finish it automatically.
Questions about Securitycheck.network
Is the "You iPhone has been infected with the viruses (4)!" warning from Microsoft?
No. Microsoft and Windows Security never show warnings inside a browser tab, never ask you to call a phone number and never charge for a scan through a web page. The message "You iPhone has been infected with the viruses (4)!" comes from a website that copies the look of a system alert.
It runs a script that shows the same alarm to every visitor, whatever computer they use. Close the tab, and if it refuses to close, end the browser in Task Manager.
Then check the browser's notification permissions and extensions, because those are the usual reason such a page reopens. If you want to know whether the PC is really clean, open the Windows Security app from the Start menu and run a scan there.
What if I called the number on the "You iPhone has been infected with the viruses (4)!" page?
Hang up if you are still on the call, and do not let anyone connect to the PC. If you already allowed a remote session, disconnect the PC from the internet and uninstall the remote-access tool they asked for, such as AnyDesk or a similar program.
Assume they saw everything on the screen. From another device, change the passwords you typed during or after the call, starting with e-mail and banking. If you paid by card or gift card, contact the bank or the card issuer the same day and ask for a chargeback.
Report the call and the page that showed "You iPhone has been infected with the viruses (4)!" to the authorities in your country so the number can be blocked.
Can Securitycheck.network harm my PC just by being open?
No. A web page runs inside the browser's sandbox and cannot install programs, read your files or change Windows settings on its own. Securitycheck.network can only make noise, fill the screen and try to persuade you. The risk begins when you follow it:
- calling the number
- paying
- downloading a file
- pasting a command
Close the page, and if it frightened you into doing one of those, follow the matching steps in this guide. Otherwise, nothing on the PC needs cleaning or repairing.
The agent knew details about my PC. Were they real?
They looked real but proved nothing. Callers from pages like Securitycheck.network open the Windows Event Viewer, which shows harmless warnings on every PC, or run a command that lists normal system details, and present them as signs of infection. Some type alarming text into a command window themselves.
Nothing they showed you came from a real scan. If they had remote access, follow the clean-up steps anyway, because they may have installed tools while you watched. Change any password they could have seen.
Does Securitycheck.network affect other devices at home?
No. A page in a browser lives in that browser on that PC. The pattern reported, A browser warning that reads "You iPhone has been infected with the viruses (4)!", does not spread across a home network or through the router.
Other devices are only affected if they visit the same kind of site or if you used them to call, pay or install something the page asked for.
If you share a browser profile through sync, check notification settings and extensions on each computer that uses that profile, because a permission granted on one PC can follow you to the others.
I closed it, but it appeared again the next day. Why?
A page that returns on its own has a trigger. Look at how it appeared: from a pop-up in the corner of the screen means a notification permission; on start-up means a session restore or a changed start page; while browsing any site means an extension; on one particular site means that site's ads.
Each has a quick fix in the browser settings. If none of them explains it, reset the browser, which clears permissions, extensions and start pages together.
How did Securitycheck.network find me?
It did not target you personally. Pages like this buy traffic from shady ad networks and from hacked sites, and they show A browser warning that reads "You iPhone has been infected with the viruses (4)!" to whoever is redirected to them.
Mistyped addresses, streaming and download sites, and earlier clicks on Allow for notifications are the most common entry points. Nothing about your PC was scanned or known in advance. Once you remove the trigger in the browser, the page has no way to reach you again unless you meet a similar ad.
Which browser settings protect against fake alerts?
Three matter most. First, notifications: set your browser to ask before allowing them, and block sites you do not trust. Second, reputation checks: SmartScreen in Edge and Safe Browsing in Chrome warn you before known scam pages load, and Firefox has its own deceptive-content protection under Privacy & Security.
Third, pop-ups and redirects: keep the default blocking on. Add a reputable ad blocker if fake alerts keep reaching you through ads on sites you use. Review the notification list every few months.
The page will not close. What can I do?
Press Esc to leave full-screen mode, then close the tab. If the browser is frozen, open Task Manager with Ctrl + Shift + Esc, select the browser and click End task. When you restart the browser, do not restore tabs.
If the page loads again on start, open a new window and close the old one, then remove the page from the browser's startup settings. Restarting the PC also works. Nothing was installed by the page, so closing it by force is safe and loses nothing.
Will Fortect remove Securitycheck.network?
Fortect scans Windows for malware and unwanted programs and repairs the system files and settings they change, and its free scan shows what it finds on your PC before you decide anything.
For Securitycheck.network, follow the plan above as well: the browser steps take back permissions and settings that no scanner treats as a threat, and uninstalling the program that brought it removes the source.
Run Microsoft Defender's full scan and, if anything was found, its offline scan as a second opinion. If the symptoms are gone after the plan and both scans are clean, there is nothing more to do.
Sources
- Uscybersecurity: 8 Different Types of Malware (read October 6, 2026)
- Emisoft: 62% of the Top 50 Download.com applications bundle toolbars and other PUPs (read October 6, 2026)
- FTC: How to spot, avoid and report tech support scams (read October 6, 2026)
- FTC: How to recognize, remove and avoid malware (read October 6, 2026)
- Microsoft Learn: Microsoft Defender Offline (read October 6, 2026)