The F-Secure Internet Security 2015 SAFE is really a great all-round package for the security on your PC, smartphone and tablet. An Installation CD is no longer supplied, everything has to be activated online with the corresponding Freischaldcode from the packaging. For smartphone and tablet there is an app that is also activated with the code. Existing virus software you should definitely remove previously. After installing a few threats were detected on my computer already. The computer must remain online in the future, as there are sometimes daily update. But that is also evidence that the protection is always up to date. The surface is composed very user-friendly, here you can then make its specific settings. I also think the child protection function and the banking function, the computer switches to an extra secure mode. Deterioration in computing performance so far I could not identify.