Another major problem is lack of security enforcement. Passwords are widely used, but never long enough or obscure. Words found in the dictionary will not serve as adequate protection. Companies should conduct periodic security audits on all terminals, workstations, and servers. Security policies are also important in a work environment.
Some companies go as far as employee termination for repeated violation of security policies.
In order to effectively audit a network for security vulnerabilities, one must be familiar with how security can be compromised. In most cases, no. Crackers have many systematic methods of circumventing a networks security structure. Crackers have many techniques of capturing passwords. One way they can be obtained is called clear-text sniffing.