Why Antivirus Software Still Matters—Even If You Use a Mac or Have Windows Defender.

In today’s hyper-connected world, we rely on our computers for everything—from banking and shopping to running businesses and attending school. So why do so many people still ignore antivirus software?

As a tech expert and the founder of ITTSforAll, I’ve encountered far too many customers who believe they don’t need any antivirus protection. The most common line I hear is, “I use a Mac. Macs don’t get viruses,” or “I have Windows Defender. That’s enough, right?”

Unfortunately, many of these same customers come back weeks later with frozen computers, corrupted files, and compromised accounts. Let’s set the record straight and look at why antivirus software is still a must-have in 2025, no matter what device you use.

The Myth: Macs Don’t Get Viruses

It’s true that macOS was traditionally considered more secure than Windows, partly because fewer viruses were written for Macs. But that’s changed. As Apple’s market share has grown, so has malware targeting Macs.

According to a Malwarebytes 2023 Threat Report, Mac malware grew faster than Windows malware in recent years—with an average of 11 threats per Mac device compared to 5.8 on Windows. These threats include adware, browser hijackers, and even remote access tools (RATs) that allow hackers to spy on your screen.

Real Example from My Repair Desk

One MacBook user came in complaining that none of their website logins were working. It turned out their browser had been hijacked by a malicious extension that redirected login pages to a fake phishing site. Their Facebook, email, and PayPal were all compromised—because they didn’t have any active antivirus software running to catch it.

The Misconception: Windows Defender is Enough

Windows Defender, now called Microsoft Defender Antivirus, has improved significantly in recent years. It’s free, built-in, and does a decent job at blocking common threats. But decent is not the same as comprehensive.

Defender lacks advanced features found in premium antivirus programs like:

• Real-time behavior monitoring

• Web protection and anti-phishing

• Ransomware rollback

• Identity theft prevention

• Network vulnerability scans

In short, Defender is a good first line of defense—but not the last one you should rely on.

Another Real-World Case

A customer using a Windows laptop with Microsoft Defender active came in after suddenly losing access to their bank account. Malware had installed silently through a phishing email attachment. The malware wasn’t picked up by Defender because it used behavior-based evasion. The user had no backup antivirus to catch it before damage was done.

What Happens When You Don’t Have Antivirus?

When devices are unprotected, the door is wide open for:

• Password theft (through keyloggers or fake login pages)

• System slowdowns from background malware processes

• Unwanted pop-ups or redirects from adware

• Ransomware locking your files until you pay a fee

• Spyware tracking your online activities

Even something as simple as clicking a bad link or visiting a compromised website can install harmful code silently.

The Overlooked Danger of Fake Websites

Here’s another real-life situation that highlights how modern cybercriminals take advantage of users who let their guard down online.

Latest Real-World Case

A customer of mine was trying to pay his phone bill. Instead of typing the exact URL, he searched the provider’s name on Google. Unfortunately, he clicked on a fake website that looked identical to the real one. Without realizing, he entered his payment details and paid his bill—only to discover his phone was never reactivated.

Why? Because the money went to a fraudulent company.

Had he used a tool like Malwarebytes Browser Guard, it would have immediately flagged the fake website as suspicious and blocked access before he could enter his payment info. This kind of scam is more common than people think, and it’s one more reason antivirus protection—especially one with browser filtering—is critical.

Why Antivirus Still Matters in 2025

Here’s why a dedicated antivirus program is still necessary today:

1. Real-Time Protection
   Advanced antivirus software like Malwarebytes Premium, Norton 360, or Bitdefender watches your system for suspicious activity—not just known viruses. This catches evolving threats that traditional programs miss.

2. Web Protection
   Most infections start online—whether through phishing emails, malicious ads (malvertising), or drive-by downloads. Antivirus software blocks dangerous websites before the damage is done.

3. Privacy & Identity Protection
   Modern antivirus programs protect your webcams, microphones, saved passwords, and even alert you if your email or personal info appears on the dark web.

4. Peace of Mind for Remote Work and Online Banking
   With more people working from home or handling finances online, protecting sensitive data is no longer optional—it’s critical.

Choosing the Right Antivirus

Here are a few solid choices depending on your needs and budget:

• Malwarebytes Premium – Lightweight, affordable, and excellent at blocking real-world threats and ransomware.

• Bitdefender Total Security – Highly rated for both performance and security features.

• Norton 360 with LifeLock – Great for families and users concerned about identity theft.

• Sophos Home – Ideal for Mac users who want advanced protection without system slowdown.

The Bottom Line

Viruses don’t knock on your door—they sneak in silently and cause chaos before you even know they’re there. As someone who repairs infected systems weekly, I can tell you this: an ounce of prevention is worth far more than hours of data recovery and frustration.

Whether you use a Mac, PC, or even a Chromebook, having antivirus software installed and active is not just smart—it’s essential.

Protect your data, your passwords, your identity, and your peace of mind. Invest in antivirus software today.

About the Author

Ebrima Ceesay is a technology expert, computer repair specialist, and founder of ITTSforAll, where he helps individuals and businesses stay protected, connected, and up to date with practical digital solutions.