If you have antivirus software on your computer, you probably feel like you've done the responsible thing. You paid for protection, it runs in the background, it occasionally interrupts you with a popup about something. You're covered.
Here's the honest answer to whether antivirus is enough in 2025: for what it was designed to do, it's fine. For the threats that are actually targeting you right now, it has real limits — and the security industry has a financial incentive to make sure you never think too hard about that distinction.
What antivirus actually does well
Antivirus software was built to catch malicious files. If someone tricks you into downloading and running software that contains malware, a decent antivirus tool will often catch it. It scans files, compares them against a database of known threats, and blocks the ones that match. For that specific use case, it still works reasonably well.
The problem is that's not how most people get hurt online anymore.
The threat moved. Antivirus mostly didn't.
You don't need to download anything to get phished. You click a link in an email, land on a page that looks exactly like your bank, enter your login credentials, and it's over. No file was downloaded. No software was installed. Antivirus has almost nothing to say about any of that.
The same is true for the wave of AI-powered scams hitting people right now. Fake invoices, spoofed vendor emails, text messages impersonating delivery companies. These attacks live in your browser and your inbox, not in your file system. They're specifically engineered to not look like malware, because they aren't malware. They're deception. And deception isn't something a file scanner catches.
It's fighting yesterday's war
Traditional antivirus is signature-based, meaning it works by matching against a database of known threats. When a new attack is identified, the database gets updated, and future versions of that attack get caught. This worked reasonably well when attacks were relatively slow-moving and reused the same code.
Today, attackers use AI to generate novel phishing campaigns at scale, spin up convincing fake sites that have never existed before, and move on before they ever show up in anyone's threat database. A brand new phishing site has no bad history. It doesn't match any known signature. It loads fine in your browser, antivirus running quietly in the background, no alerts.
Google's Safe Browsing has the same structural limitation
The business model is worth understanding
Most consumer antivirus products share the same playbook: low introductory price, significant jump after year one, aggressive upsell to premium tiers. The scan results are designed to feel urgent — lots of red, lots of warnings, language engineered to create anxiety. A meaningful portion of what gets flagged as a "threat" ranges from minor to irrelevant.
This isn't accidental. A tool that quietly kept you safe with no drama would be a hard subscription to justify renewing. The popups, the alerts, the dashboard full of activity — that's the product reminding you it exists. Fear is the retention mechanism.
That's not to say antivirus is useless. It's to say you should understand what you're actually buying, and what it doesn't cover.
The gap is your browser
The single biggest unprotected surface for most people is their browser. It's where you bank, shop, log into accounts, and click links from emails. It's also where modern attacks almost exclusively live. Antivirus software has limited visibility into what's happening inside your browser, and even less ability to evaluate whether the site you're looking at is actually what it claims to be.
Extensions that sit inside your browser — the ones with permission to see what you're doing as you do it — are a completely different category of protection. They can catch what antivirus structurally can't: the moment you're about to hand your credentials to a site that isn't what it looks like.
So is antivirus enough?
For keeping malicious software off your hard drive, it's a reasonable layer. For protecting you against phishing, browser-based scams, malicious extensions, and the AI-powered attacks that are costing people real money right now — no, it isn't enough. Not because the companies making it are bad at their jobs, but because the threat has moved somewhere they weren't built to follow.
Layered protection isn't paranoia. It's just accurate.
We wrote about why Google has the same gap
Haven is a free Chrome extension built specifically for the threats that live in your browser — the ones antivirus doesn't see. Download it from the Chrome Web Store and add the layer that's actually missing.