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F-Secure Internet Security Review

F-Secure Internet Security and F-Secure SAFE both did a great job at detecting and blocking malware as we attempted to access or download threats through several internet browsers.

Our Verdict

F-Secure Internet Security and SAFE are great at protecting your computer from malware, but both lack the extra features found in similar internet security and premium protection programs, and they use a lot of system resources and aren’t the easiest to set up or use.


  • F-Secure scored high in our in-house malware protection tests and in other third-party lab tests.


  • These programs tend to slow down your devices a bit.
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F-Secure Internet Security and F-Secure SAFE both did a great job at detecting and blocking malware as we attempted to access or download threats through several internet browsers. There were a couple of malicious websites that harbored phishing schemes that F-Secure didn’t block us from accessing, but it did well enough to earn a 98 percent protection score from us and an overall protection score of 99 percent when we considered other laboratory test results.

Unsure if this is the right antivirus software for you? Make sure to check out our best antivirus guide.

Both of F-Secure’s internet security and premium security suites securely delete malware blocked or quarantined from your computer so they can’t reinfect your system. They also both come with parental controls and a personal firewall. When we searched online using Google, Bing or other search engines, F-Secure noted which webpages listed in the search results were safe to visit by placing an icon by each.

While the Internet Security version isn’t compatible with mobile devices, SAFE is, and it includes antitheft tools and a lost phone alert. But even without mobile protection, F-Secure Internet Security will scan any device connected to your computer through its USB port, including mobile devices, and remove any threats it finds.

SAFE includes a password manager to help shield usernames and passwords as you sign into online accounts. It also has a VPN that hides your online presence, so your browser history can’t be used by adware or tracked by your internet browsers.

Neither Internet Security nor SAFE include a vulnerability scanner. This feature would close gaps in your system typically caused by outdated programs that are easy targets for hackers and ransomware to break into your computer. Webcam monitoring isn’t available either. F-Secure also doesn’t offer any online backup storage. All these features are offered through both Bitdefender Internet Security and Bitdefender Total Security programs if you feel you need them.

F-Secure isn’t the easiest program to use. Program settings must be changed from your online portal and not from the desktop dashboard. Every time we wanted to perform a task, F-Secure displayed a pop-up message asking if we really wanted to follow through with our decision, even when we simply wanted to open a file tab. And finding some functions is difficult because they aren’t placed under features and tabs that make sense. For example, the quarantine folder is listed under Settings in the Antivirus tab rather than the Tools or the Antivirus tab.

We also discovered during testing that F-Secure uses a lot of your computer’s resources while running, especially during virus scans. And since F-Secure doesn’t have a gamer or silent mode, it isn’t a good choice if you do a lot of gaming or watching movies online. It has the potential to create lag at the most inopportune times. If you are a gamer, we suggest looking into Avast and its automatic gamer mode.

You are also limited in your support options unless you choose to purchase a premium support package. Phone support is available during business hours on weekdays. With your purchase of the premium support plan you have 24/7 access to telephone support.

F-Secure is a good product because it is effective at detecting and stopping malware, both on home computers and mobile devices. Both Internet Security and SAFE programs include parental controls, personal firewalls and safe browsing features. A VPN and password manager are available with F-Secure SAFE. Overall, F-Secure doesn’t have as many protection features as other programs. It’s also difficult to navigate and uses a fair amount of your computer’s resources while running that may cause noticeable lag.