Tuesday, May 31, 2011, 5/31/2011 09:14:00 AM

ABA Journal: Federal PACER Document Filing System May Reveal Trade Secrets Formerly Believed to Be Shielded

By Todd


The ABA Journal is reporting that the PACER protocol for hiding redacted information in court documents filed with Pacer don’t always work, according to a study that suggests tens of thousands of the online filings may have failed redactions.



Timothy Lee, a PhD candidate in computer science at Princeton, conducted the study. He found 194 documents with not-so-hidden information that included trade secrets; personal information; and names of witnesses, jurors or plaintiffs. Lee wrote about his study at Freedom to Tinker, a blog hosted by Princeton’s Center for Information Technology Policy.



Lee explains that PDF documents have multiple layers, and text may still be under a blacked-out rectangle. Extracting the information can be as easy as cutting and pasting.



Lee found the 194 documents by writing a computer program to detect redaction boxes in the 1.8 million Pacer documents in Princeton’s collection. The software identified about 2,000 documents with redactions. Of those, 194 had redactions that didn’t work.



Lee notes that Pacer reportedly has about 500 million documents. He cautioned that Princeton’s Pacer documents aren’t a random sample, so it’s difficult to estimate just how many Pacer documents have similar problems. Still, he writes, it’s safe to say there are thousands, and probably tens of thousands, of documents in Pacer with failed redactions.






We'll keep an eye on any response from the federal judiciary.

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