Statistics show that more than 80 percent of successful hacks occur because Web technicians fail to install patches for known and publicized bugs. In other words, a little effort can go a long way toward securing your network. Be sure to eliminate unused user IDs and to avoid provisioning SNMP services through the firewall. Sealing off the LeaksProtecting your network against hackers need not be a full-time job. One of the best ways to ensure that your network is secure is to keep abreast of developing threats.
Security experts agree that ignorance is the most detrimental security problem.
Most hacks occur because someone wasn't paying attention. Many companies will sit on patches rather than put them to use. Others are not diligent enough about searching for and downloading the latest virus definitions. Smart hackers bank on the negligence of others. Limit port access.