**Preface to "Advanced Topics in Systems Safety and Security"**

The networked intelligent systems development in multiple technical areas such as industrial control systems, wireless sensor networks, automotive industry, homeland, and border protection lead to several unprecedented challenges related to their security and safety. These challenges should be addressed in a timely manner.

In this context, rapid dissemination of the research results in the field of systems safety and security is critical. That is the reason why in 2013, the first edition of the International Workshop on Systems Safety & Security (IWSSS—iwsss.org) took place in the beautiful Sinaia city, Romania. The IWSSS started with the idea of bringing together specialists and researchers interested in these topics. With every yearly edition, the workshop becomes a real platform for exchanging experience, ideas, and research results to increase awareness of cybersecurity issues and stimulate collaboration at regional and international levels.

This book is a reprint of the Information Special Issue (SI) on Advanced Topics in Systems Safety and Security. The SI comprises high-quality papers dealing with the challenging research topics in cybersecurity of computer networks and industrial control systems.

The contributions presented in this book are mainly the extended versions of selected papers presented at the 7th and the 8th editions of the International Workshop on Systems Safety and Security—IWSSS. These two editions took place in 2019 and respectively in 2020. In addition to the selected papers from IWSSS, the special issue includes other valuable and relevant contributions.

The papers included in this reprint discuss various topics ranging from cyberattack or criminal activities detection, evaluation of the attacker skills, modeling of the cyber-attacks, and mobile application security evaluation. Given this diversity of topics, we hope that the book will represent a valuable reference for researchers in the security and safety of systems.

> **Emil Pricop, Grigore Stamatescu, Jaouhar Fattahi** *Editors*
