This book constitutes the refereed proceedings on the 23rd Nordic Conference on Secure IT Systems, NordSec 2018, held in Oslo, Norway, in November 2018.The 29 full papers presented in this volume were carefully reviewed and selected from 81 submissions. They are organized in topical sections named: privacy; cryptography; network and cloud security; cyber security and malware; and security for software and software development.

This book constitutes the refereed conference proceedings of the 9th Annual Privacy Forum, APF 2021. Due to COVID-19 pandemic the conference was held virtually. The 9 revised full papers were carefully reviewed and selected from 43 submissions. The papers are organized in topical sections on Implementing Personal Data Processing Principles; Privacy Enhancing Technologies; Promoting Compliance with the GDPR.

This book constitutes the refereed conference proceedings of the 10th Annual Privacy Forum, APF 2022 in Warsaw, Poland in June 2022. The 8 full papers were carefully reviewed and selected from 38 submissions. The papers are organized in the area of privacy and data protection while focusing on privacy related application areas. A large focus of the 2022 conference was on the General Data Protection Regulation (GDPR).

Fast taglich werden neue Angriffe auf IT-Systeme bekannt, bei denen sensible Daten entwendet werden. Das vorliegende Buch vermittelt die wesentlichen Grundlagen und Technologien, die zur Absicherung von Computernetzwerken benotigt werden. Stets legen die Autoren dabei Wert auf eine verstandliche Darstellung, die soweit moglich auf abstrakte Modelle und formalen Notationen verzichtet. Zu jedem Kapitel werden Aufgaben zur Kontrolle von Wissensstand und Verstandnis angeboten.