What about chain of evidence? Who's to say that the hacker didn't change details of the report between downloading it and publishing it? "This is a report fro

What about chain of evidence? Who's to say that the hacker didn't change details of the report between downloading it and publishing it? "This is a report from a security expert" sounds quite a bit better in court than "This is a report that another hacker claims is an unaltered copy he nicked from a security expert".