Organisational security is strongly dependent on the organisational actors and their behaviour. Trust, as a phenomenon has strong influence on the perceived level of security and influences the employees' intent for whistleblowing or the readiness for change and learning. Trust as a relation however is defined in variety of ways by the relevant scientific literature. Hence, the primary aim of present paper is to create a thorough understanding of the concept under scrutiny, and determine its relation with organisational safety and security. Secondly, the paper endeavours to explore the trust(ing) behaviour of young adults with at least 6 months' work experience and identify special characteristics of various subgroups' trust. Finally, the implications of the research data are enumerated, with special attention to those connected to organisational safety. Introduction - Organisational Safety and Security