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Cyber Safe Work Security Awareness Poster October 2025

Cyber Security Awareness Poster

A virus is more than a cold. Is your device infected? free cybersecurity poster - malware

A Virus is More Than a Cold – Recognizing the Signs of Malware Infection

Your computer isn’t just a tool; it’s a repository of personal memories, sensitive information, and essential work. Just as we monitor our health for signs of illness, it’s crucial to be vigilant about our devices’ well-being (including our phones). Malware infections can compromise your data, privacy, and overall security.

When our bodies get sick, we can tell. We might be sluggish, achy, or coughing. Computers have tell-tale signs of malware or virus infection as well. Here are a few common signs of malware and how to safeguard your system.

Common Signs of Malware Infection

Sluggish Performance

If your once-speedy computer starts crawling, malware might be consuming its resources. Malicious programs often run background processes that hog memory and processing power, leading to noticeable slowdowns. According to Norton, unexpected slow performance is a typical sign of malware infection.

Frequent Crashes or Freezes

Regular system crashes, freezes, or the dreaded “blue screen of death” can indicate malicious interference. Malware can destabilize your operating system, causing these disruptions. As noted by NordVPN, if your device frequently crashes, it could be a symptom of a malware infection.

Unwanted Pop-up Ads

An influx of pop-up advertisements, especially when you’re not browsing the web, is a red flag. This annoyance is often linked to adware infections. Malwarebytes highlights that unexpected pop-up ads are a typical sign of a malware infection.

New or Unfamiliar Programs

Discovering software you didn’t install is alarming. Malware can introduce additional malicious applications without your consent. Stony Brook University points out that new programs or desktop icons that you do not recall installing could be a symptom of an infected computer.

Unauthorized Browser Changes

If your browser’s homepage or default search engine changes without your consent, it could be a sign of malware or unwanted software. Cybersecurity experts warn that these changes often attempt to redirect you to unsafe websites or flood you with intrusive ads. If you notice unfamiliar settings, run a full security scan immediately to detect and remove potential threats.

Unusual Network Activity

A sudden spike in data usage or unfamiliar programs accessing the internet could signify malware transmitting data from your system. Monitoring your network activity can help identify these threats. NordVPN mentions that if your data runs out quicker than usual, it may be a sign of malware stealing your bandwidth.

Protecting Your System

If you recognize any of these symptoms, it’s essential to act promptly:

Run a Full System Scan

Utilize reputable antivirus or anti-malware software to perform a comprehensive scan. Regular scans can detect and remove malicious programs before they cause significant harm. The Federal Trade Commission recommends using security software and updating it regularly to protect your computer from malware and other threats. We’ve mentions a few good options above.

  • Malwarebytes: provides an extra layer of protection that quickly detects and removes malware, adware, and other threats traditional antivirus often misses.
  • Norton: offers comprehensive, all-in-one protection with antivirus, firewall, password management, and identity theft safeguards to keep your devices and personal information secure.
  • VPN: like NordVPN encrypts your internet connection, hides your IP address, and protects your online activity from hackers, trackers, and prying eyes—especially on public Wi-Fi.

Update Your Software

Keeping your operating system and applications up to date ensures you have the latest security patches, closing vulnerabilities that malware might exploit.

Be Cautious with Downloads

Only download software from trusted sources. Avoid clicking on unsolicited links or downloading attachments from unknown emails.

Watch for Unusual Internet Behavior

If your internet suddenly feels much slower, you see unexpected pop-ups, or your data usage spikes for no reason, it could mean a malicious program is trying to connect to outside servers. Run a security scan if you notice these changes.

Educate Yourself

Stay informed about the latest malware threats and protection strategies. Knowledge is a powerful tool in maintaining your digital health.

Remember, just as you wouldn’t ignore a persistent cough, don’t overlook the signs of a malware infection. Regular maintenance and vigilance are key to ensuring your computer remains healthy and your data secure.

If you do find malware or viruses on your computer, it’s important to completely REMOVE malware/viruses from your PC. If you are not comfortable with this task, hire a professional who is.

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