9 Warning Signs Your Computer Is Infected With Spyware (2024)

9 Warning Signs Your Computer Is Infected With Spyware (1)

Spyware is Internet jargon for hidden programs that advertisers install on your PC without your permission to gather information about you and your online activities and report it to a third party.

Spyware is NOT harmless; it can be responsible for delivering a boatload of spam, altering your web browser, slowing down your PC, and serving up a bounty of pop-up ads. In extreme cases, spyware can also steal your identity, passwords, e-mail address book, and even use your PC for illegal activities. Because computer security, protecting your identity and preserving the integrity of your data are among our top priorities, we encourage you to be aware of computer spyware and the symptoms you may see on your computer.

Most spyware finds its way onto your computer via file downloads of free programs, music files, and screen savers found commonly on the Internet. Nasty programs piggyback your intended download and run undetected on your computer collecting information about you and sending it out to a third party until they are removed. Although spyware has malicious components, it is not illegal, and it is not considered a virus because it doesn’t replicate itself or destroy data.

SEE ALSO:How to Protect Your Computer From Spyware

If you are experiencing one or more of the followingwarning signs, chances are your computer is infected and youshould seek professional help in getting the spyware removed.

  1. Your browser has been hijacked.If you open your Internet browser and a strange-looking homepage pops up and won’t go away, chances are you have a spyware program installed on your computer. You may also discover that you cannot modify your browser settings and that your favorites folder has been modified.
  2. You conduct a search but another, unauthorized browser completes it for you. For example, you type a search term into Microsoft IE but another browser pops up and lists various websites tied to your search term. This is a surefire sign of a spyware infection. You’ll also notice that if you try and remove this program, it comes right back.
  3. Your computer is unstable, sluggish, locks up, or crashes frequently. Spyware programs run in the background taking up disk space and processor speed which will cause serious performance problems.
  4. You constantly get pop-up ads displayed on your screen, even if you aren’t browsing the Internet. Some of the ads may even be personalized with your name.
  5. You receive expensive phone bills for calls to 900 numbers that you didn’t make. Some spyware programs can use your computer to make calls on both a broadband and dial-up line.
  6. The send and receive lights on your modem blink actively as though you are surfing the Internet or downloading files online, even though you aren’t. More than likely this is due to spyware programs sending and receiving information via your computer without your permission or acknowledgement.
  7. Mysterious files suddenly start appearing on your computer, your files are moved or deleted, or the icons on your desktop and toolbars are blank or missing.
  8. Your CD drawer starts opening and closing by itself.
  9. You find e-mails in your “Sent Items” folder that you didn't send.

Most spyware programs are designed to run undetected by the user. That means you could be infected and not even know it.Because spyware is so prevalent on the Internet, it’s a good idea to scan your system once a week to clear out any potential infections.

9 Warning Signs Your Computer Is Infected With Spyware (2)

9 Warning Signs Your Computer Is Infected With Spyware (3)

ABOUT THE AUTHOR | Kevin Gray

Hello! I am the Managing Principal @ EnvisionIT Solutions. | Technology Expert | Author | Speaker | Small & Medium Business IT Support - We founded EnvisionIT Solutions in 2007 to provide IT services and support for business owners/CEOs who value the necessity of technology to drive their success and growth.

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9 Warning Signs Your Computer Is Infected With Spyware (2024)

FAQs

How can you tell if your computer is infected with spyware? ›

How do you know if there is spyware on your computer?
  • you are subjected to endless pop-up windows.
  • you are redirected to web sites other than the one you typed into your browser.
  • new, unexpected toolbars appear in your web browser.
  • new, unexpected icons appear in the task tray at the bottom of your screen.

What 5 indicators are there that you might have spyware on your computer? ›

Continue reading to learn more about the common signs of spyware and how to remove it from your laptop.
  • You receive unwanted pop-up ads. ...
  • Your browser's homepage has changed. ...
  • Your laptop runs slower than usual. ...
  • Your laptop has a short battery life. ...
  • Your browser keeps redirecting you. ...
  • Malicious programs run in the background.
Aug 29, 2024

What are the symptoms of spyware infection? ›

How can I tell if I have a malware infection?
  • Your computer slows down. ...
  • Your screen is inundated with annoying ads. ...
  • Your system crashes. ...
  • You notice a mysterious loss of disk space. ...
  • There's a weird increase in your system's Internet activity. ...
  • Your browser settings change.

Which of the following are signs that your computer may be infected with spyware? ›

Keep an eye out for these key warning signs of malware infection so you can jump into action and reduce your risk.
  • Strange Popups on Your Desktop. ...
  • New Sluggish Behavior. ...
  • Applications Start Crashing. ...
  • Your Browser Home Page is Redirected. ...
  • Sudden Reboots. ...
  • You're Missing Hard Drive Space. ...
  • You Run Across Corrupted Files.

How to tell if someone is monitoring your computer? ›

Here's how to check if someone is remotely accessing your computer:
  1. Look for blatant signs of active intrusion. ...
  2. Inspect all recent activity on your device. ...
  3. Check for remote access programs. ...
  4. Review your firewall settings. ...
  5. Run an antivirus scan.

How do I clean my computer from spyware? ›

How to remove malware such as a virus, spyware, or rogue security software
  1. Install the latest updates from Microsoft Update. ...
  2. Use the free Microsoft Safety Scanner. ...
  3. Use the Windows Malicious Software Removal Tool. ...
  4. Manually remove the rogue security software. ...
  5. Run Microsoft Defender Offline.

How do I know if my device has spyware? ›

Run antivirus software: Some spyware will look like legitimate apps and files that can be hard to detect by yourself. To help you identify any hidden spyware, you need to install antivirus software on your phone. Antivirus software scans your phone to find any hidden spyware and will remove the spyware from your phone.

How do I detect and remove spyware from my computer? ›

Here are three of the most common ways to detect PC spyware:
  1. Look for spyware using Task Manager. Open Task Manager and navigate to the Processes tab to see all of the apps and processes running on your machine. ...
  2. Search for bloatware programs you didn't download. ...
  3. Download and use security software to scan your PC.
Jan 2, 2024

Can spyware see you? ›

How can spyware control your phone's camera? Mobile spyware is malware that allows hackers to steal information and watch anything within view of your phone camera. It can also enable them to access your microphone, location, calendar, and contacts.

What is spyware warning? ›

Fake Trojan spyware alerts, often known as scareware or rogue security software, are deceptive pop-ups or notifications designed to frighten users into believing that their device is compromised. In reality, there's often no threat.

Can spyware hear you? ›

Spyware apps surreptitiously run on a device, most often without the device owner's awareness. They collect a range of sensitive information such as location, texts and calls, as well as audio and video. Some apps can even stream live audio and video.

What are some signs that you may have spyware on your computer? ›

Your computer is unstable, sluggish, locks up, or crashes frequently. Spyware programs run in the background taking up disk space and processor speed which will cause serious performance problems. You constantly get pop-up ads displayed on your screen, even if you aren't browsing the Internet.

How can I tell if my computer is infected? ›

12 signs that your computer is infected with a virus
  1. Slow-running computer. A sudden drop in your computer's performance is often the first sign of a virus infection. ...
  2. Screen pop-ups. ...
  3. Disappearing files. ...
  4. Antivirus software not working. ...
  5. Suspicious programs. ...
  6. System blocking. ...
  7. Battery draining. ...
  8. Home page switching.
Mar 26, 2024

How do I run a spyware check? ›

Here are three of the most common ways to detect PC spyware:
  1. Look for spyware using Task Manager. Open Task Manager and navigate to the Processes tab to see all of the apps and processes running on your machine. ...
  2. Search for bloatware programs you didn't download. ...
  3. Download and use security software to scan your PC.
Jan 2, 2024

How do I get rid of spyware on my computer? ›

The best way to remove spyware is to use an anti-spyware scanner. Download and install a reliable free antivirus solution, and it will detect and remove the spyware from your device.

How do I find hidden viruses on my computer? ›

Open your Windows Security settings. Select Virus & threat protection > Scan options. Select Microsoft Defender Antivirus (offline scan), and then select Scan now.

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