Online social networks deviance; Online social networks misusage; Online social networking threats, Dark side of digital social networks Glossary APIs Application programming interfaces BFAS Bergen Facebook Addiction Scale DDoS Distributed denial-of-service DSM-V The fifth version of diagnostic and statistical manual of mental disorders IP Internet Protocol OPPA Online Privacy Protection act of 2003 OSINT Open source intelligence PIPEDA Personal Information Protection and Electronic Documents Act SmartPLS 3.0 Software that performs latent variable modeling (e.g., PLS-POS, IPMA) Definition There is an increasing awareness that online social networks (OSN), besides their numerous benefits like social capital enhancement and knowledge dissemination, present a "Dark Side," including a set of complex and often alarming ways in which the development and use of these platforms affect private, professional, and social life (Fox and Moreland 2015; Turel and Qahri-Saremi 2016). This dark side refers, among others, to privacy, security, maliciousness, and more generally all bad effects and deviancies that one can observe and analyze on the various types of online social networks. Among the largest online social networks nowadays, one can quote Facebook, Twitter, Weibo, and Instagram that have rapidly emerged as the most widely adopted and continuously used information and communication technology devices. Thus, analyzing the dark side of online social networks requires both the ability to (1) understand the socio-psychological drivers of digital communication usage to better analyze addiction, fatigue, privacy, and security concerns better and (2) build methodologies and approaches to identify and capture the various malicious activities that take place in OSN.