This article presents basic issues concerning security research in the past, called reaching the origins of security. Reaching the origins is not a concept that finds its rightful place in security research. It has been used and thus fixed permanently in other areas, therefore, the issues discussed in this article concern problems from many fields of knowledge. Security testing covers a number of processes, including retrospective ones, the essence of which is a scientific look into the past. Reaching the origins, all in all, makes it possible to identify the sources of danger and the requirements to be met for safety to reach an acceptable level. It allows, on the one hand, to prevent the recurrence of these sources and, on the other hand, to apply the solutions of the past to today's and tomorrow's security efforts. It can also be said that reaching the origins of safety is connected with determining the methods of eliminating and minimizing threats, and thus indicating the procedures providing an appropraite level of security. It's a utilitarian effect. In the cognitive context, it should be emphasized that the results of reaching the origins may serve to enrich the contemporary knowledge in the field of security. In both cases the procedures of avoiding mistakes made in the past are going to be worked out, especially that their sources are usually human mistakes having their origins in the lack of knowledge of past times. The considerations presented in the article allowed to determine the meaning of reaching the origins, its types and mutual relations between it and the diagnosis, monitoring and forecasting of security. In conclusion, the presented deliberations are summarized.