Verbrennen - nicht shreddern

[adleritey]

Tja, selbst wenn ihr eure Dokumente shreddert, sind sie dank der punkte wiederherstellbar.

The U.S. Secret Service has been working with manufacturers of color laser printers to place tiny, imperceptible yellow dots on printed pages so that the government can track the machine that produced them. Good put the puzzle under a blue-light filter and saw the dots. “It was a breakthrough moment,” he says. “The pattern of dots is practically a map for how everything comes together.”

http://www.businessweek.com/magazine/ti ... 52011.html