Scam report Scam Alerts

“Warning: System Resource Leak” Scam Pop-ups Explained

By Thomas Orsolya8 min read

If you’ve ever stumbled upon a webpage warning you about a “Warning: System Resource Leak”, claiming your browser is draining memory or slowing down your computer, you might have encountered one of the latest online scam trends. These pages often mimic system alerts, display alarming messages, and pressure users to download certain software to “fix” the problem. One of the most common versions of this scam promotes the Opera GX browser, a legitimate browser, but the scam itself is not affiliated with Opera GX in any way.

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These deceptive sites use fear tactics to manipulate users into clicking links and downloading programs through affiliate schemes. In this detailed guide, we will uncover everything about the “Warning: System Resource Leak” scam, how it works, how scammers profit from it, and most importantly, how you can protect yourself.

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Scam Overview

The “Warning: System Resource Leak” scam is a fraudulent online campaign that uses fake warnings to manipulate users into installing software, often through misleading affiliate links. The scam usually appears when users visit questionable or high-risk websites such as pornographic platforms, torrent sites, or illegal streaming services. These websites are notorious for hosting third-party advertising networks, which sometimes allow deceptive ads to slip through.

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What the Scam Looks Like

The fake alert is designed to imitate a system or browser warning. It typically displays text like:

WARNING: SYSTEM RESOURCE LEAK
Your current browser is quietly draining RAM. CPU usage spikes. Background tasks multiply. It’s not optimized for gaming – it’s optimized for them.
Opera GX gives you control. RAM limiter. CPU guard. No surprises.
The choice isn’t obvious. That’s what they’re counting on.

Users are then presented with two buttons:

  • EXPOSE THE TRUTH
  • KEEP TRUSTING THE LIARS

This manipulative phrasing is intentionally designed to create urgency and fear, making users feel as if they are making a critical decision about their computer’s safety. The scam relies on emotional triggers, exploiting the fear of performance loss or malware infection.

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Why It Works

These scams are remarkably effective because they imitate legitimate warning messages. The average internet user often cannot distinguish between a genuine system alert and a fake one embedded on a webpage. The visual design mimics the aesthetic of a tech terminal, complete with neon green text and system-like fonts, giving it a falsely authoritative appearance.

Moreover, the psychological impact of fear-based messaging amplifies the scam’s effectiveness. Users are made to feel responsible for fixing an urgent problem, which reduces their ability to think critically before clicking.

The Connection to Opera GX

The scam often uses the Opera GX browser as bait. Opera GX is a real web browser developed by Opera Software, specifically designed for gamers. It includes unique features such as CPU and RAM limiters, background music, and gaming integrations. However, Opera GX is not involved in or responsible for these scams.

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Instead, scammers use Opera GX’s reputation to lend legitimacy to their fake alert pages. These pages often contain affiliate links that track installations. When someone downloads Opera GX through their unique link, the scammer earns a small commission from the affiliate program. This means the scam’s true purpose is not to harm your device directly, but to generate revenue through affiliate marketing abuse.

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Where These Ads Come From

The majority of these scam ads originate from malicious ad networks or redirect chains embedded within unsafe websites. When a user clicks on a link or banner on such sites, they are often redirected through several tracking domains before landing on the fake “System Resource Leak” warning page.

This entire process happens in milliseconds and is invisible to most users. Scammers take advantage of this to deliver their message in a way that appears spontaneous and authentic. Since these pages often appear as overlays or pop-ups, users believe the warning came from their browser or operating system.

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Technical Behavior

While most of these scam pages are just scareware (scare-based advertisements) and don’t install malware directly, some versions can be more dangerous. Variations of the same campaign have been reported to:

  • Trigger fake download prompts.
  • Redirect users to phishing websites.
  • Install browser extensions that collect browsing data.
  • Push potentially unwanted programs (PUPs).

Even if no malware is immediately installed, clicking or interacting with these pages increases the risk of future exposure to malicious software.

Why Users Should Be Concerned

Although Opera GX itself is safe, the method used to promote it through deception damages user trust and puts people at risk of installing unwanted software or exposing personal data. Scammers take advantage of affiliate marketing systems, turning legitimate business models into fraudulent revenue schemes.

Every time a user clicks a link, fills in a form, or downloads a program from one of these scam pages, they provide potential access to data, including IP addresses, device information, and browsing behavior. This information can later be used for targeted advertising, malvertising, or even identity theft in more advanced scams.

Understanding how this scam operates is the first step toward defending against it.

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How the Scam Works

The “Warning: System Resource Leak” scam follows a calculated, step-by-step process designed to exploit user trust and fear. Below is a detailed breakdown of each stage:

Step 1: The Bait – Visiting Risky Websites

Most victims encounter the scam when they visit questionable websites, including:

  • Free movie streaming platforms
  • Torrent download pages
  • Adult content sites
  • Illegal software or crack download portals

These sites often contain advertising networks with low-quality control, meaning they serve ads from sources that don’t always follow legitimate practices. Once a user clicks on an ad or even interacts with the page, a redirect sequence is triggered.

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Step 2: The Redirect Chain

After clicking, users are sent through a series of hidden redirects. Each redirect URL tracks the click and passes it through affiliate or tracking networks. This ensures that if the user eventually installs Opera GX (or another promoted program), the scammer gets paid.

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The redirect chain may include domains like:

  • Ad tracking URLs
  • Cloaked domains to mask origin
  • Shortened links to hide final destination

This chain is the foundation of the affiliate marketing abuse that drives these scams.

Step 3: The Fake Warning Page Appears

After the redirects, users arrive at the scam page displaying a visually alarming warning. It typically includes green text on a black background, emulating a command-line interface. The headline reads:

⚠️ WARNING: SYSTEM RESOURCE LEAK

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This is followed by a paragraph implying that the user’s current browser is overusing RAM or CPU resources. The text falsely claims that the current browser is inefficient or compromised, suggesting that Opera GX offers protection or optimization.

Step 4: Emotional Manipulation

The scammers use psychological manipulation to push the user into taking immediate action. The message is worded to:

  • Instill fear (“Your system is being drained!”)
  • Create urgency (“Fix it now before it gets worse!”)
  • Offer a simple solution (“Download Opera GX”)
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The two-button choice reinforces the illusion of urgency:

  • EXPOSE THE TRUTH (positive action)
  • KEEP TRUSTING THE LIARS (negative action)

This binary framing tricks users into believing that not clicking means making the wrong choice.

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When the user clicks either button, they are redirected to an affiliate link for Opera GX or sometimes a third-party installer site. In legitimate cases, it redirects to the real Opera GX download page, but with an affiliate ID attached to track who initiated the installation.

In other cases, users may be sent to fake installer pages that bundle Opera GX with unwanted software or even malware. This depends on how the scam is set up and which affiliate or ad network is involved.

Step 6: Affiliate Tracking and Profit

Each download through the scammer’s affiliate link generates a small commission, often between a few cents to a few dollars per installation. This encourages scammers to spread their campaigns aggressively across multiple websites, forums, and pop-up networks.

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The scam’s success depends on volume, not quality. Even if a tiny percentage of users fall for it, the scammers still make significant profit from the sheer number of impressions.

Step 7: Continuous Evolution

These scams evolve constantly to avoid detection. New domains, new messages, and new variations appear daily. Some replace Opera GX with other software, such as cleaning tools, VPNs, or system optimizers. The underlying structure remains the same: fake alert + fear + affiliate link.

Scammers may also experiment with different visual styles, such as:

  • Mimicking antivirus software interfaces.
  • Using fake progress bars or loading screens.
  • Displaying fake system diagnostics.

Each variant aims to appear authentic enough to make users believe their system is in danger.

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What To Do If You Have Fallen Victim to the Scam

If you have clicked on one of these scam ads or installed a program from such a page, there are several steps you should take immediately to protect your system and data.

1. Do Not Panic

First and foremost, understand that the Opera GX browser itself is not malware. However, if you installed it through a suspicious link, you should remove it and reinstall it from the official Opera GX website to ensure it’s authentic.

2. Disconnect from the Internet Temporarily

If you suspect any unauthorized downloads or installations, disconnect from your network. This prevents potential malware from communicating with external servers or downloading additional files.

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3. Uninstall Unwanted Programs

Go to your system’s control panel or settings and look for any software installed on the same date as your encounter with the scam page. Uninstall anything unfamiliar, especially system optimizers or browser extensions you did not intentionally install.

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4. Run a Full System Scan

Use a reputable antivirus or anti-malware tool such as Malwarebytes, Bitdefender, or Windows Defender. Run a full system scan to detect and remove any potential threats or unwanted software.

5. Reset Your Browser

If your browser has started showing unusual pop-ups or redirects after visiting the scam page, reset it to its default settings:

  • Clear cookies, cache, and site data.
  • Remove suspicious extensions.
  • Restore default homepage and search engine settings.
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6. Install Browser Security Extensions

Consider adding reliable browser security tools such as:

  • uBlock Origin (for ad blocking)
  • Malwarebytes Browser Guard (for phishing protection)
  • NoScript or ScriptSafe (for controlling JavaScript execution)

These extensions reduce the risk of future exposure to similar scams.

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7. Update Your System and Software

Make sure your operating system, browsers, and security software are up to date. Outdated software can be more vulnerable to malicious redirects and exploits.

8. Reinstall Opera GX from the Official Source (Optional)

If you still want to try Opera GX, download it directly from Opera’s official website. Never use links from third-party pages or pop-ups.

9. Educate Yourself and Others

Scams like these rely on user ignorance. By understanding how affiliate scams and fake alerts work, you can help others avoid falling into the same trap. Share this information with friends or family who may browse risky sites.

10. Report the Scam

You can report fake ads and scam pages to:

Reporting helps reduce the spread of these scams and alerts legitimate companies about the misuse of their brand names.

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Is Your Device Infected? Run a Free Malware Scan

Slow performance, constant pop-ups, or strange behavior? These are classic signs of a malware infection. The fastest way to find out is to scan your device with Malwarebytes Free — one of the most trusted malware removal tools available.

The free version detects and removes the most common threats, including:

  • Adware — the cause of those annoying pop-ups
  • Browser hijackers — unwanted redirects and changed homepages
  • Trojans and spyware — hidden programs stealing your data
  • Potentially unwanted programs (PUPs) — software you never asked for

👉 Select your device below — Windows, Mac, or Android — then follow the simple steps to download Malwarebytes, scan your system, and remove any threats it finds. The scan usually takes 5 to 20 minutes.

Run a Malware Scan with Malwarebytes for Windows

Malwarebytes is one of the most popular and trusted anti-malware tools for Windows — and it’s completely free for removing infections. It catches threats that many antivirus programs miss, including adware, browser hijackers, and trojans. Follow the steps below to scan and clean your PC in just a few minutes.

  1. Download Malwarebytes

    Click the button below to download the latest version of Malwarebytes for Windows from the official source. The free version is all you need — it will scan your computer and remove adware, browser hijackers, and other malicious software at no cost.

    Malwarebytes Free for WindowsScans and removes malware at no cost
    Download MalwarebytesOfficial installer for Windows 11 and 10. Your download starts right away.Want real-time protection? See Malwarebytes Premium
  2. Install Malwarebytes

    When the download finishes, open your Downloads folder and double-click the MBSetup file. If Windows shows a User Account Control pop-up, click “Yes” to allow the installation.

    MBAM1
  3. Follow the On-Screen Prompts to Install Malwarebytes

    The setup wizard will walk you through a few quick screens:

    • Choose where you’re installing the program — “Personal Computer” or “Work Computer” — then click Next.

      MBAM3 1
    • Malwarebytes will now install on your device. This usually takes under a minute.

      MBAM4
    • When installation is complete, the “Welcome to Malwarebytes” screen will open automatically.

      MBAM6 1
    • On the final screen, click Open Malwarebytes to launch the program.

      MBAM5 1
  4. Enable “Scan for Rootkits”

    Before scanning, turn on rootkit detection so Malwarebytes can find even the most hidden threats. Click the Settings gear icon on the left side of the screen.

    MBAM8

    In the settings menu, find “Scan for rootkits” and click the toggle so it turns blue.

    MBAM9

    Done? Click “Dashboard” in the left pane to return to the main screen.

  5. Start the Scan

    Click the blue Scan button. Malwarebytes will automatically update its virus database and start checking your computer for malware.

    MBAM10
  6. Wait for the Scan to Finish

    The scan checks your entire system for browser hijackers and other malicious programs, so it can take 5 to 20 minutes depending on your computer. Feel free to do something else — just check back occasionally to see the progress.

    MBAM11
  7. Quarantine the Detected Threats

    When the scan is done, you’ll see a list of everything Malwarebytes found — malware, adware, and potentially unwanted programs. Click the “Quarantine” button to remove all of them at once.

    MBAM12

    Malwarebytes will now remove the malicious files and registry entries and move them safely into quarantine.

    MBAM13
  8. Restart Your Computer

    Some threats can only be fully removed after a reboot. If Malwarebytes asks you to restart, click Yes. Once you’re logged back in, Malwarebytes has finished removing the threats it found.

    MBAM14

That’s it — your Windows PC is now clean of trojans, adware, and other malware, and should be back to running smoothly.

Keep your PC protectedStop the next infection before it starts
If your antivirus let this threat through, it may not be enough on its own. Malwarebytes Premium adds real-time protection that blocks malware, ransomware, and malicious websites before they can infect your computer.See Malwarebytes Premium

If you are still having problems with your computer after completing these instructions, then please follow one of the steps:

Run a Malware Scan with Malwarebytes for Mac

Malwarebytes for Mac is a free on-demand scanner that removes the malware other security software tends to miss — adware, browser hijackers, and unwanted programs included. Cleaning an infected Mac with Malwarebytes has always been completely free, and it’s our go-to recommendation. Follow the steps below to scan and clean your Mac in just a few minutes.

  1. Download Malwarebytes for Mac

    Click the button below to download the latest version of Malwarebytes for Mac.

    Malwarebytes Free for MacScans and removes malware at no cost
    Download MalwarebytesOfficial installer for macOS. Your download starts right away.Want real-time protection? See Malwarebytes Premium
  2. Open the Malwarebytes setup file

    When the download finishes, open your Downloads folder and double-click the setup file to begin the installation.

    Double-click on setup file to install Malwarebytes

  3. Follow the On-Screen Prompts to Install Malwarebytes

    The Malwarebytes for Mac Installer will guide you through a few quick screens. Click “Continue” and keep following the prompts until the installation completes.

    Click Continue to install Malwarebytes for Mac

    Click again on Continue to install Malwarebytes for Mac

    Click Install to install Malwarebytes on Mac

    When the installation is complete, Malwarebytes opens to the Welcome to Malwarebytes screen. Click “Get started“.

  4. Select “Personal Computer” or “Work Computer”

    Malwarebytes will ask what type of computer you’re installing it on. Click either Personal Computer or Work Computer, whichever applies.
    Select Personal Computer or Work Computer mac

  5. Start the Scan

    Click the “Scan” button. Malwarebytes will automatically update its detection database and begin checking your Mac for malware.
    Click on Scan button to start a system scan Mac

  6. Wait for the Scan to Finish

    Malwarebytes will scan your Mac for adware, browser hijackers, and other malicious programs. This can take a few minutes, so feel free to do something else — just check back occasionally to see the progress.
    Wait for Malwarebytes for Mac to scan for malware

  7. Quarantine the Detected Threats

    When the scan is done, you’ll see a list of everything Malwarebytes found. Click the “Quarantine” button to remove all the threats at once.
    Review the malicious programs and click on Quarantine to remove malware

  8. Restart Your Mac

    Malwarebytes will now remove all the malicious files it found. Some threats can only be fully removed after a reboot — if Malwarebytes asks you to restart, allow it. Once you’re logged back in, your Mac is clean.
    Malwarebytes For Mac requesting to restart computer

That’s it — your Mac is now free of adware, rogue browser extensions, and other potentially harmful software.

Keep your Mac protectedStop the next infection before it starts
If your Mac got infected, its built-in protection may not be enough on its own. Malwarebytes Premium for Mac adds real-time protection that blocks malware and adware before they can infect your Mac.See Malwarebytes Premium

If you are still experiencing problems while trying to remove a malicious program from your computer, please ask for help in our Mac Malware Removal Help & Support forum.

Run a Malware Scan with Malwarebytes for Android

Malwarebytes for Android automatically detects and removes dangerous threats like malware and ransomware so you don’t have to worry about your most-used device being compromised. Aggressive detection of adware and potentially unwanted programs keeps your Android phone or tablet running smooth.

  1. Download Malwarebytes for Android.

    You can download Malwarebytes for Android by clicking the link below.

    Malwarebytes for AndroidScans your phone and removes malware at no cost
    Get Malwarebytes for AndroidOpens Google Play in a new tab.Want real-time protection? See Malwarebytes Premium for Android
  2. Install Malwarebytes for Android on your phone.

    In the Google Play Store, tap “Install” to install Malwarebytes for Android on your device.

    Tap Install to install Malwarebytes for Android

    When the installation process has finished, tap “Open” to begin using Malwarebytes for Android. You can also open Malwarebytes by tapping on its icon in your phone menu or home screen.
    Malwarebytes for Android - Open App

  3. Follow the on-screen prompts to complete the setup process

    When Malwarebytes will open, you will see the Malwarebytes Setup Wizard which will guide you through a series of permissions and other setup options.
    This is the first of two screens that explain the difference between the Premium and Free versions. Swipe this screen to continue.
    Malwarebytes Setup Screen 1
    Tap on “Got it” to proceed to the next step.
    Malwarebytes Setup Screen 2
    Malwarebytes for Android will now ask for a set of permissions that are required to scan your device and protect it from malware. Tap on “Give permission” to continue.
    Malwarebytes Setup Screen 3
    Tap on “Allow” to permit Malwarebytes to access the files on your phone.
    Malwarebytes Setup Screen 4

  4. Update database and run a scan with Malwarebytes for Android

    You will now be prompted to update the Malwarebytes database and run a full system scan.

    Malwarebytes fix issue

    Click on “Update database” to update the Malwarebytes for Android definitions to the latest version, then click on “Run full scan” to perform a system scan.

    Update database and run Malwarebytes scan on phone

  5. Wait for the Malwarebytes scan to complete.

    Malwarebytes will now start scanning your phone for adware and other malicious apps. This process can take a few minutes, so we suggest you do something else and periodically check on the status of the scan to see when it is finished.
    Malwarebytes scanning Android for Vmalware

  6. Click on “Remove Selected”.

    When the scan has been completed, you will be presented with a screen showing the malware infections that Malwarebytes for Android has detected. To remove the malicious apps that Malwarebytes has found, tap on the “Remove Selected” button.
    Remove malware from your phone

  7. Restart your phone.

    Malwarebytes for Android will now remove all the malicious apps that it has found. To complete the malware removal process, Malwarebytes may ask you to restart your device.


That’s it — your Android phone is now clean — no more malicious apps, adware, or browser redirects.

Keep your phone protectedStop the next infection before it starts
Malwarebytes for Android Premium adds real-time protection that blocks malicious apps and scam links before they can harm your phone.See Malwarebytes for Android

If you are still having problems with your phone after completing these instructions, then please follow one of the steps:

Stay Protected: Block Ads and Malicious Sites

Now that your device is clean, keep it that way. Most infections start with a malicious ad or a fake download button — so blocking them at the source is your best defense.

We recommend AdGuard, which blocks malicious ads, phishing pages, and dangerous redirects before they can reach you.

👉 Download AdGuard and browse safely

The Bottom Line

The “Warning: System Resource Leak” scam is a sophisticated form of digital deception that uses fear-based messaging to drive users toward affiliate downloads. Although the Opera GX browser promoted in these scams is legitimate, the campaigns themselves are unauthorized, manipulative, and misleading.

Always remember: real browsers or operating systems never issue warnings through websites. Genuine system alerts come from your device’s notification center, not a pop-up within your browser.

Take back control of your browsing.

After revoking unwanted notification permissions, add protection against malicious downloads and the advertising that interrupts your browsing.

Affiliate links We may earn a commission if you buy through these links, at no extra cost to you. How we’re funded

MalwarebytesSCAM & MALWARE PROTECTION

Check suspicious software, too.

If a pop-up persuaded you to install something, Malwarebytes can scan for malware and unwanted software. Premium adds ongoing protection.

  • Scam Guard for suspicious messages
  • Real-time malware protection with Premium
Explore MalwarebytesExplore features on the official website
AdGuardAD & TRACKER BLOCKING

Fewer pop-ups. Quieter browsing.

AdGuard blocks many intrusive ads and pop-ups, and filters trackers. Keep browser notification permissions under control separately.

  • Blocks intrusive ads and pop-ups
  • Filters trackers while you browse
Explore AdGuardExplore features on the official website

Features vary by device and plan. These tools add protection; they do not guarantee that a website or offer is trustworthy.

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Written by

Thomas Orsolya

Thomas is an expert at uncovering scams and providing in-depth reporting on cyber threats and online fraud. As an editor, he is dedicated to keeping readers informed on the latest developments in cybersecurity and tech.

44,685 articlesWriting since 2023
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