The organization security policy, like the vacation policy or the
family leave policy, is an official company document that lays out the
expectations of the organization, the processes to be implemented, and the
sanctions for those that fail to comply. Without a well-defined and accepted
security policy, security becomes an ad hoc process governed by the person in
charge at the moment and can (at best) lack any effective usefulness to the
organization or (at worse) could lead to significant losses of resources and/or
opportunities.
Security policies are covered in detail in the “Site Security
Handbook” (RFC 2196). The handbook document defines a security policy as “A
formal statement of the rules by which people who are given access to an
organization’s technology and information assets must abide.” It goes on to say
that “the main purpose of a security policy is to inform users, staff, and
managers of their obligatory requirements for protecting technology and
information assets. The policy should specify the mechanisms through which these
requirements can be met. Another purpose is to provide a baseline from which to
acquire, configure, and audit computer systems and networks for compliance with
the policy. Therefore, an attempt to use a set of security tools in the absence
of at least an implied security policy is meaningless.”