Do I Need Antivirus?

Antivirus Protection

People ask me this all the time, and they expect me to say "yes, install something now." I won't. I've run phones and computers for years without a resident antivirus, and when something has felt off, I've installed Trend Micro, scanned, and moved on. Here's how I actually think about it.

Phones

iPhone Skip it. iOS won't even let antivirus apps scan other apps — Apple's sandboxing prevents it — so what's sold as "mobile antivirus" is really a bundle of VPN and safe-browsing features in a scary wrapper.

Android Android already runs Google Play Protect in the background. If you install from official stores, keep the OS updated, and don't tap every link a stranger sends you, you're covered.

Desktops

Windows ships with Microsoft Defender, which is now one of the best antivirus engines around — independent labs rate it at or near the top. macOS has XProtect running silently. The built-in protections are already doing the job, and they're already on. The question isn't really "antivirus or no antivirus" — it's whether you need a second one. For most people, you don't.

What I Actually Do (and Recommend for Techies)

Defender on, browser-level phishing protection on, password manager, two-factor on email and banking, run as a standard user, patch aggressively. When something feels off — weird behavior, sluggish machine, suspicious download — I run Trend Micro HouseCall (free, on-demand) or do a full scan with Trend Micro. That's it.

Trend Micro for Safe Browsing

Yes, they offer it, and the best parts are free. Trend Micro ID Protection is a free browser extension that warns you about phishing sites, blocks dangerous links, and flags shady ads. Their Site Safety Center lets you paste any URL to check its reputation. And HouseCall is the free on-demand scanner I already mentioned. Together, that's most of what their paid suite does — minus the always-on resident scanner.

Where You Should Land

  • Beginners: Leave Defender on. Add Trend Micro's free ID Protection extension. Use a password manager. Don't pay for a third antivirus suite — pay for a password manager instead.
  • Busy professionals: Buy one bundled suite (Trend Micro Maximum Security is a fine pick) and forget about it. You're buying peace of mind, not a meaningful detection upgrade.
  • Techies like me: Built-in protection plus good habits plus a free on-demand scanner is enough.
  • Everyone: Real-time scanning running (the built-in one counts), browser phishing protection on, automatic updates, a password manager, and 2FA on the accounts that matter. That's the baseline. Anything beyond it is preference.

Am I Wrong That Daily Antivirus Isn't Needed?

Mostly no. The one honest caveat: modern malware often shows no symptoms — cryptominers, info-stealers, and dormant backdoors can sit quietly for weeks. "I'd notice" is the weakest part of my own model. But since Defender is already running real-time on Windows by default, I'm not actually living without a net — I'm just not paying for a second one. And that's the answer I give people: you already have antivirus. Use it, stay sharp, and keep something like Trend Micro HouseCall around for when your gut says scan.

Sources