This paper analyzes the security measures of ships for the purpose of protection against pirate attacks, and to which measures the international community has paid great attention. This is particularly emphasized through the work of the International Maritime Organization, the IMO and its applicable guidelines. Nation-states regulate in detail and further the issue of safety protection of ships flying its flag. Thus, the Republic of Croatia has adopted a number of laws and regulations in the field of security protection, such as the Security Protection Act and other regulations. Ship security and other interests also play an important role in the process of protection against the consequences of pirate attacks. Therefore, all the presented protection measures are considered to be effective solutions for the security protection of ships from pirate attacks.