Shredded But perhaps not permanently. Mike Haw via Wikimedia
DARPA's Impossible-Sounding Shredder Challenge is Already Solved -- Popular Science
9,000 teams registered for the shot at $50,000, but it took one three-man team just 33 days to solve DARPA’s Shredder Challenge, a contest to read destroyed documents. San Francisco-based “All Your Shreds Are Belong to U.S.” took the prize two days before the close of the competition, exhibiting the ability to blend computer vision algorithms and human know-how to reconstruct five different documents that had been run through a paper shredder and converted to more than 10,000 total pieces of paper.
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My Comment: My recommendation .... better burn everything.