NSA Leaker: How The Intercept Outed Reality Winner

NSA Leaker: How The Intercept Outed Reality Winner, by Errata Security. People have remarked on the apparent ease with which investigators were able to trace the leak back to Winner. … The Intercept said the materials were submitted anonymously. So how?

She had printed out the documents and sent them to The Intercept. …

Most new printers print nearly invisibly yellow dots that track down exactly when and where documents, any document, is printed. Because the NSA logs all printing jobs on its printers, it can use this to match up precisely who printed the document. …

Printers have two features put in there by the government … The first is that they recognize a barely visible pattern on currency, so that they can’t be used to counterfeit money … The second is that when they print things out, they includes these invisible dots, so documents can be tracked.

Now everyone knows. See article for a technical description.

hat-tip Charles