This book constitutes the revised selected papers of the 4th International Conference on Information Systems Security and Privacy, ICISSP 2018, held in Funchal - Madeira, Portugal, in January 2018.The 15 full papers presented were carefully reviewed and selected from a total of 71 submissions. information systems security and privacy;

Fine-grained Privacy Control for Fitness and Health Applications using the Privacy Management Platform.- Touch and Move: Incoming Call User Authentication.- Elicitation of Privacy Requirements for the Internet of Things using ACCESSORS.- A Simple Attack on CaptchaStar.- Notify this: Exploiting Android Notifications for Fun and Profit.- The Current State of the Holistic Privacy and Security Modelling Approach in Business Process and Software Architecture Modelling.- A Critical Security Analysis of the Password-based Authentication -Honeywords System under Code-corruption Attack.- GenVote: Blockchain-based Customizable and Secure Voting Platform.- A Detailed Analysis of the CICIDS2017 Data Set.- Personalising Security Education: Factors Influencing Individual Awareness and Compliance.- Managing Cybersecurity Break-ins using Bluetooth Low Energy Devices to Verify Attackers: A Practical Study.- On Building a Visualisation Tool for Access Control Policies.- Survey and Guidelines for the Design and Deployment of a Cyber Security Label for SMEs.- Privacy Preserving Collaborative Agglomerative Hierarchical Clustering Construction.- Insights into Unsupervised Holiday Detection from Low-ResolutionSmart Metering Data.