Simple, simple, simple. That's F-Secure's motto. Costing £29 for one year and one PC, F-Secure Internet Security 2011 focuses on safeguarding the computers of novices and especially of families.

Even before the software is installed, you are asked to configure parental controls and set an access password, which is used to change settings. Keeping things simple, the F-Secure Internet Security 2011 home screen provides just six options to choose from, so even the most oblivious novice should be able to find their way around its interface. One minor complaint is that by default, clicking the Scan button runs only a quick scan; you have to use the pull-down arrow to run a full scan of your PC.

F-Secure Internet Security 2011 was an also-ran in prior years, but for its 2011 release, the company has stepped up its game. In our tests, run by, the software fully blocked 22 of 25 real-world attacks (it partially blocked two others), and it detected 98.1 percent of known malware. False positives? Absolutely none. And its 80 percent success rate at disinfecting active malware components on infected PCs put it among the top performers.

Though F-Secure Internet Security 2011 barely slowed our test systems during background operation, it was terribly slow at on-access scans, finishing dismally in last place for the time it took to scan a file as it opened. It was marginally faster at on-demand scanning.

F-Secure Internet Security 2011 has one of the most spartan help systems of any application we tested. It consists of a handful of entries in help trees, with zero documentation aside from a browser-based tutorial. On the other hand, we can't imagine the suite's users actually needing to refer to the documentation.

Next page: Our expert verdict >>

See also:

Anti-virus software reviews

Security Advisor

F-Secure Internet Security 2011: Specs

  • Windows XP?Vista/7
  • 512MB RAM (1GB recommended)
  • 600MB hard disk space
  • Windows XP?Vista/7
  • 512MB RAM (1GB recommended)
  • 600MB hard disk space


F-Secure Internet Security 2011’s speed problems are seriously troubling, and the suite left behind some code remnants after we uninstalled it. However, those are really the only sore spots in what is otherwise an impressive and worthwhile security suite.

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