Very good product and nothing to do with the old suites "plant to gas," who had changed me for Kaspersky Internet Security. It has since become very slow in its turn and Norton IS is much more reactive and less present during the use of the PC. It detects viruses and well Trojans. Just a caveat in relation to Kaspersky: parental control is difficult to manage: as soon as a site visited by children is blocked, it is tedious to authorize it; and reviewing damage completely.
