according to various virus scanners I use since annöhernd 4 years Kaspersky Internet Security. Compared to free versions Interent Security has useful features, such as the secure browser for online banking. The recognition rate is significantly better. Those who want to surf the web safely, which is this program recommended - assuming the appropriate PC: In my i7 built in 2009 no performance losses are at least recorded. Tip: Buy 3 or 5 license and share with family and friends: The easy on the wallet.