open source or virus

friend first think i can say is that no two antivirus, firewalls, or spywares work simultaneously as usually they will ask u to remove the old one during the installation of second. so this is the first advantage to hackers to take full control in their hands...... Second things is try to use microsoft spywares etc side by side...........or if any doubt about system then try to scan the system at least with trial pack of branded anti-virus or malware... but the fact is that until u dont do heavy money related things over net then u dont need to worry cuz the only things hackers wants from lot of people is money. hacker have not to do anything with every person information or email id........may be but i dont think so......as if we dont have money and an astrologers warn us that u will loose heavy amount of money in near future then i think we dont have to worry about it. but if u do heavy money dealing or bank accounts handling over ur system then u should be careful about it in future.........