Open Source Intelligence (OSINT) has matured considerably since the early 2000s. More data sources, better data bases, lower costs, increasing automation and processing all provide a wealth of data for analysts to get hold of. But exploiting all those sources requires a skilled team of tenacious people to provide the answers that are being sought, but also in checking that the veracity of the data. Peter talks to James Byrne, Director of the Open Source Intelligence and Analysis (OSIA) Research Group about constructing teams for OSINT work, the technicalities of OSINT, dealing with data overload, spoofing and fooling OSINT systems, and the future of Open Source Intelligence.