The section explores ways in which open-source information – and specifically social media – can be used to improve the understanding and response of security practitioners in the field of migration and to improve threat analysis in the context of cross-border crimes, in general. Topics include advantages and disadvantages of using information from social media for law-enforcement/intelligence-related purposes as well as an in-depth exploration of the type of insights that social media content can provide to security practitioners. The main emphasis is on the analytical component (e.g. integrating open-source information into intelligence analysis products addressing migration), though the challenges of data collection are also briefly addressed (e.g. building a directory of sources, source verification). In addition to identifying practices and useful resources this section also discusses different applications of using open source information for migration-related analysis.