Security is an investment and good management practice . Prevention is always a good investment with information systems. Retrofitting into a production environment naturally costs more, while recovering from a disaster can destroy a business. Many lower-cost, passive measures can be employed and products with weak security features can be avoided. Most importantly, security planning can leverage network configuration management and define the systems topology.
Contingency planning ensures rapid recovery.
No business can sustain extended periods out of operation. Systems designed with redundancy and the ability to reconstruct will minimize downtime for any business and possibly rescue a company from devastating productivity losses.