Security is a term which is often used but is frequently misunderstood.  It is a term which is thrown around as a way to imply safety or to inflict a degree of calm on a situation which might otherwise be interpreted as dangerous or out of control.  But security also means having back-up, feeling comfortable within your own home or business, and also feeling that no matter what was to happen there would always be someone or something there to keep an eye on things.  All of these notions of security are somewhat vague, however, and the question remains - why should you invest in a security system or program?  Can it actually be helpful and is it really necessary?  Is it worth the cost and will you ever need to call on it for assistance or protection?