Researchers Reveal Details Of Printer Tracking Dots, Develop Free Software To Defeat It
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As Techdirt has reported previously in the case of Reality Leigh Winner, most modern color laser printers place tiny yellow tracking dots on every page printed -- what Wikipedia calls "printer steganography". The Electronic Frontier Foundation (EFF) first started warning about this sneaky form of surveillance back in 2005. It published a list of printers and whether it was known that they used tracking dots. In 2017, the EFF stopped updating the list, and wrote:It appears likely that all recent commercial color laser printers print some kind of forensic tracking codes, not necessarily using yellow dots. This is true whether or not those codes are visible to the eye and whether or not the printer models are listed here. This also includes the printers that are listed here as not producing yellow dots. Despite the EFF's early work in exposing the practice, there has been limited information available about the various tracking systems. Two German researchers at the Technical University in Dresden, Timo Richter and Stephan Escher, have now greatly extended our knowledge about the yellow dot code (via Netzpolitik.org). As the published paper on the work explains, the researchers looked at 1286 printed pages from 141 printers, produced by 18 different manufacturers. They discovered four different encoding systems, including one that was hitherto unknown. The yellow dots formed grids with 48, 64, 69 or 98 points; using the grid to encode binary data, the hidden information was repeated multiple times across the printed page. In all cases the researchers were able to extract the manufacturer's name, the model's serial number, and for some printers the date and time of printing too.It's obviously good to have all this new information about tracking dots, but arguably even more important is a software tool that the researchers have written, and made freely available. It can be used to obfuscate tracking information that a printer places in one of the four grid patterns, thus ensuring that the hard copy documents cannot easily be used to trace who printed them. Printer manufacturers will doubtless come up with new ways of tracking documents, and may already be using some we don't know about, but this latest work at least makes it harder with existing models.Follow me @glynmoody on Twitter or identi.ca, and +glynmoody on Google+
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posted at: 12:15am on 03-Jul-2018
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In Contrast To PUBG's Silliness, Bethesda's Copyright Suit Against Warner Bros. Is All About Copyrightable Source Code
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As the silly copyright lawsuit between PUBG and Epic Games has now come to a fortunate end, with the former dropping the lawsuit it filed over similarities in game genre and broad gameplay aspects that are absolutely not afforded copyright protection, it's probably worth highlighting a lawsuit that is the polar opposite in terms of its merits. Now, I want to stress at the outset that I have no idea as of yet whether or not the allegations that spurred this lawsuit are true or not, but it's the actual claims that are important. If adjudicated as true, those claims are absolutely valid from a copyright law standpoint.Bethesda, makers of the Fallout franchise in its current iteration, has filed a lawsuit against Warner Bros. and Behavior Interactive, which together have released Westworld, a mobile park management simulation based on the hit HBO series. Bethesda has its own simulation of this kind, called Fallout Shelter. While Bethesda's filing does indeed make much of the clear similarities between the games animations and aesthetics, as well as some of the folks behind the Westworld game clearly saying they drew inspiration from Fallout Shelter, the important difference here is this ultimately comes down to reused specific code. How this code got reused is also part of the breach of contract allegations in the suit, as it turns out that Behavior Interactive was involved in creating Bethesda's original product.Bethesda has stated that Behaviour Interactive was involved in the creation of Fallout Shelter, before going on to make the Westworld game a few years after. Court documents reportedly state that Bethesda believes Behaviour Interactive has stolen its designs, artwork, and code, going on to use them again in this latest project in conjunction with Warner. Bethesda's filing goes into great detail showing not only aesthetic similarities in the overall game design and character illustration, but specifically in the animations involved in the game as well as how the game screen reacts when players interact. Reading through the filing, it's fairly clear that this was more than a game merely inspired by Fallout Shelters in terms of gameplay, but instead looked to be a pretty faithful recreation of it, except themed to Westworld. Still, despite all of that, Bethesda focused on the code it alleges is reused to achieve this similarity, which is important.And, while Warner Bros. has responded claiming all of this is false, and that Behavior Interactive has assured it that no code was reused, there is some additional evidence that sure points to that not being the case.Aside from these mostly aesthetic similarities, it turns out that there's one other pretty suspicious thing that Bethesda has noticed, potentially giving the game away even more. Apparently, the same bugs that were originally present in an early version of Fallout Shelter have also been found in Westworld. Oh dear.. We talk a great deal about the idea/expression dichotomy in copyright law specifically, but it should be acknowledged when a content creator gets this question right in its lawsuit allegations. Again, we don't know yet if the allegations of code reuse are true at this point. But someone should wave this filing in front of the folks at PUBG to show then what a legitimate copyright lawsuit in gaming looks like.
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