The open access volume LNCS 11739 constitutes the proceedings of the 9th International Workshop
on Socio-Technical Aspects in Security STAST 2019 held in Luxembourg in September 2019. The
total of 9 full papers together with 1 short paper was carefully reviewed and selected from 28
submissions. The papers were organized in topical sections named as follows: Methods for
Socio-Technical Systems focused on instruments frameworks and re ections on research
methodology and also System Security considered security analyses and attacks on security
systems. Finally Privacy Control incorporated works on privacy protection and control as well
as human factors in relation to these topics.
