Open-source intelligence (or OSINT) has grown up. Digging up the truth about criminals, conflicts and cartels using only what's available online used to be the obscure realm of hobbyists. Now with the war in Ukraine, OSINT enthusiasts and professionals alike have been thrust into the spotlight and hundreds of thousands of people are poring over their work. They have a new, global audience and new responsibilities, as we explore in this week's Tech 24.