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You probably know the big antivirus names already. What’s usually missing are the little details that actually make or break your decision. For example: does it slow your computer down while running in the background? Is the price justifiable compared to the level of protection it offers? Does it come with extras like VPNs, password managers, or parental controls or is it just bare-bones virus scanning? And what about compatibility, will it run smoothly on Windows, macOS, Android, or iOS?
We’ve done the digging for you and laid out these details side by side so you don’t have to jump from site to site.
This site features companies that may provide us with compensation. Placement, ratings, and rankings are influenced by multiple factors, including company performance, popularity with visitors, reputation, and compensation. Not all companies available in the market are included. Compensation may impact how and where a company or product is displayed.

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Trusted by millions worldwide, it delivers real-time protection, hourly updates, and top-rated malware defense.
Gives you complete protection for up to 10 devices with advanced antivirus, VPN, anti-tracking, and powerful cleanup tools.
Surfshark runs smoothly without slowing your device, giving you 24/7 protection against new and emerging threats.
Almost anyone who spends most of their time on the internet needs antivirus. Because where there’s Wi-Fi, there’s always a risk lurking.
It’s easy to think avoiding sketchy websites will keep you safe, but viruses can open the floodgates through everyday actions like checking your inbox or inserting a flash drive.
Since you can’t always tell what’s safe (after all, don’t judge a book by its cover), antivirus protection is non-negotiable. With countless programs available, we’ll guide you through the choices.
A computer virus is formed when malicious code is embedded into a program or file, and it spreads by hitching a ride on things like email attachments, downloads, or infected USB drives.
A trojan is malware that disguises itself as a safe-looking program, and it installs when someone is tricked into downloading or running it on their device.
Ransomware is malware that locks or encrypts your files and then demands a ransom payment to give you back access. Even if you pay, there’s no guarantee your files will actually be restored.
A worm is a self-replicating program that spreads through networks or devices without any user action.
Keyloggers secretly record everything you type on your keyboard, including passwords, messages, and other sensitive information.
A rootkit is malware that hides itself to give attackers secret access, often using a collection of tools that grant them administrator-level control over a device.
Spyware is malware that slips into your computer, quietly collects your personal data, and sends it to others without you knowing or agreeing to it.
Adware shows unwanted ads on your device, sometimes to support free apps, but it can also track your activity or expose you to other malware.
Antivirus software helps keep your computer safe by finding, blocking, and removing harmful programs before they can cause problems. The best antivirus programs use several methods at once to give you stronger, all-around protection.
Key methods include:
AI-powered antivirus programs detect new and evolving threats by learning patterns of normal behavior, spotting unusual activity, and analyzing huge amounts of data to recognize suspicious files or actions.
Heuristics check how a file behaves and flag suspicious actions that might signal a virus, even if that virus hasn’t been identified before.
Behavior monitoring in antivirus software spots threats by watching what programs do in real time, instead of just checking them against a list of known viruses.
Sandboxing is an antivirus feature that safely runs suspicious files in a controlled environment to see how they behave before letting them interact with your system.
Signature-based detection is the most traditional antivirus method, comparing files to a database of known malware signatures and blocking anything that matches.
When it comes to antivirus, the big debate is always free vs. paid and the truth is, both camps have their perks. Free antivirus is like a basic seatbelt: it covers the essentials, but you won’t get much beyond bare-bones protection.
Paid antivirus, on the other hand, is more like a full airbag system. It comes with extras like ransomware shields, phishing protection, parental controls, and even identity theft monitoring. As an expert’s view: free software can be enough if you’re a light user who sticks to trusted sites and keeps things updated, but if your work or data has real value (and let’s be honest, whose doesn’t?), the added layers of paid protection are worth the price of a few coffees a month.
The key features to look for in antivirus software depend on your specific needs: