If security safeguards are implemented without considering the practical aspects at hand, the safeguards might be ineffective in some circumstances. For example, it does not make sense to block an entrance area using turnstiles if employees can access the building using an open side entrance instead.

Individual safeguards may also be implemented that do not make sense from an economic point of view. To protect information with normal protection needs with regard to confidentiality, an appropriately implemented rights and role concept makes more sense and is more economical than establishing complex, certificate-based encryption on a file server.