I was cleaning up my office, and I came across a piece of paper that had 8 Commandments of Network Security on it.  I’m not sure where it came from, but I like the list so here it is:

Thou shalt use strong passwords and change the default passwords that come with any program.

Thou shalt use up-to-date anti-virus software on all computers.

Thou shalt change the default configurations of newly installed operating systems and applications.

Thou shalt not run services that are not required.

Thou shalt install security fixes for operating systems and applications as soon as they become available.

Thou shalt back up your systems early and often.

Thou shalt protect your systems against power surges and loss of power.

Thou shalt know who you are trusting.  That goes for trusted network connections as well as personnel.