Could you tell me what you mean by data protection , protection from data loss and crashes , or security protection .
If data protection means protection against data loss ,then you can make a secure back up every 10-15 days (norton ghost) .If you mean security protection ., then you can make your eventual financiel tranfers on a computer not on the web , and don\'t use your visa or other credit cards on your computer . You can use a firewall , but even with firewalls who\'s safe on the net?