Internet security and antivirus protection.
Nowadays a computer has to be equipped with a security program.
Beside viruses and Trojans, which are distributed via the internet, direct attacks on your computer are also possible. A good Firewall is there for a must.
Kaspersky offers comprehensive protection at a moderate annual license fee.
Further information is to be found on the homepage of Kaspersky, in specialized trade or directly at the manufacturer, which means any support is to be directed to the same address.