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Whistleblower’s guilty plea and unmistakable trail of watermarks

Axios: “Reality Winner has pleaded guilty: “All of my actions I did willfully, meaning I did so of my own free will,” she told a court on Tuesday, per the New York Times‘ report. The former Air Force linguist earned the distinction of being the first person prosecuted by the Trump administration on charges of leaking classified information under the Espionage Act. Her defense struck a deal with the Justice Department that would have her serve 63 months in prison and three years of supervised release. (A judge must now decide whether to approve the sentence.) Federal authorities accused Winner last year of leaking a classified report concerning Moscow’s meddling in the 2016 U.S. presidential election. They believed her to have sent the document to The Intercept, a news outlet funded by Ebay billionaire Pierre Omidyar, which published it online in full. For all its talk of protecting whistleblowers, The Intercept made a rookie mistake: uploading a scanned copy of the original report, which contained telltale, electronic traces all but confirming Winner as the culprit. The pages bore unmistakable watermarks—printer microdots—that identified their source. Although the FBI did not mention the dots in its court filings, the agency did say it was able to determine the leaked document was a printout thanks to crease marks. The dots no doubt clinched the case. Whatever your stance on Winner’s situation may be, her undoing at least provides a valuable lesson to would-be whistleblowers and media outlets: Heed the dots. Indeed, already there are workarounds. A new paper authored by four German researchers at the Technical University of Dresden describes a method for overcoming these watermarks. Having decoded a variety of dot arrangements, the team suggests adding additional dots in precise ways so as to thwart the tagging technique, rendering output anonymous. You can test out the group’s obfuscation tools here…”

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