 I really like the details and to know a little bit behind the story, especially the technical aspect of the story, which is what I want to cover today. So Reality Winner, yes, a person named Reality Winner was arrested and charged with leaking top secret NSA docs on Russia hacking to the Intercept. Not here to talk about any of the politics, I'm going to talk about some of the details behind it. Not actually the Russian hack details, that's all published, you can read those yourself. It shocks me none that Russians are trying to manipulate things. It's the only curiosity of what they were able to, but anyways. So she posted some documents, she was a, I think a contractor, but either way, she had access to NSA documents, she released those NSA documents and she gave them to the Intercept. And the Intercept has been made famous by Snowden and the documents they released there. Now you can read through the documents, I'm not here to read this to you, I'm here to talk about how she got caught, which is interesting. I've known this for a while, but I guess a lot of people don't, and clearly she was unaware of this. Printers offer telltale signs. So here is the document, you can find a link to the document in the Intercept, I'll throw all these links in there below. So you can find a link to the document in Intercept and then you can download the raw document itself, which is the NSA report. Now the problem is, and this is where the NSA, not the NSA, the Intercept really screwed up. They published the original document and only redacted certain pieces here. Do you see that this is actually a scanned page of a color print? Well let's talk about that and let's talk about what's in here and what led us to this. So the agency knew what time it was printed and that's how they identified it. So if we search for the phrase printing in here, you'll come to, and this is on the justice.gov, OPA, press release file. This is the actual government details of her arrest. So the government agency conducted an internal audit determine who exists in television reporting and publication and they knew right when it was printed. So it was published on May 5th and blah, blah, blah. So here's all the details in here and you're like, okay, how did they really know? A guy would say track what documents are printed, but this gets a little bit more specific than that. And this is where we're going with this. List of printers which do not display tracking dots and of course ones that do. There's tracking dots in here and we're going to show you how the tracking dots actually worked and how the intercept screwed up. And it really is, okay, I guess you can point blame at the person who sent it to the intercept without omitting it probably because they didn't know and then once again the intercept because a lot of news agencies aren't super tech savvy. I know there's a whole story of how Snowden had trouble getting things in a secure manner to them because of this. This is a tool versus the printers that have it and then there's the tool here that tells you what the details are. But let's go open a Photoshop and show you what we got here. So I manipulate the color. So here's what it looks like, you know, default. Let's play with the contrast. And when we start playing with it, we notice these pattern of dots that repeat this pattern here. Now, what that pattern is doing is giving you serial number of the printer time and date of print. Well, I'm going to go on a limb here and say that the NSA probably knows exactly the serial number of every single printer that they have. So once they had the serial number and the time of print, most commercial copiers easily have a logging facility and I feel as though the NSA also has full logging turned on to know what time each person sent a print job to it. Especially when you're dealing with national security documents. National security documents, you know, kind of important stuff. So we have these dots in here. So let's see what these dots actually are going to tell us. What I'm going to do is I have a split screen, but I'll quickly run through and fast forward some of this so I can show you what happens when we put all these dots and then this pattern into the tool provided by the EFF. That'll help us to code this. Right now, they didn't go blind from staring at yellow dots, which are really hard to see. I understand why they're yellow because they're really easy to look over. So this is an interpretation of the following pattern. The interpretation is reverse engineering and may not be complete current for every dual color model version. Xerox Corporation has no connection with this program and does not warrant its correctness. So it does have a parity system. It gave me the serial number of the printer, the date of May 9, 2017, the time of 6.20. So right there, we have some details. Well, certainly enough for the NSA and for the FBI to build the document that they have. So this is how they did it. So this was like the whole step by step. They went through, they did this and identified the person. Can it scary that this is in there? Like I said, it's a whole political mess of what your side of the venture on whether or not documents should be leaked. But this is more of a details that I found interesting of how the hack, well, not really how the hack occurred, how the person that dumped the information got the information back. These are those little details that are really interesting about the case. So I guess if you're going to print documents, make sure you're not doing it via a printer that is in color. And if you send things to the intercept, whichever feeling, people aren't going to send things to the intercept. And yeah, that little oops there got this person is going to spend some time in jail undoubtedly for the rest of our lives. So thanks for watching. If you found this interesting, like the content here, like and subscribe. That's kind of a random video. But these are little details. I actually want to do more of how they got hacked and some debriefings I have for incidents that occurred and things that can get details. Because sometimes it also serves as a good learning tool to figure out how things got identified. Thanks for watching.