A team of researchers from Drexel University  and George Mason University  has discovered that up to 80 percent of certain anonymous underground forum users can be identified using linguistics. "If our dataset contains 100 users we can at least identify 80 of them," researcher Sadia Afroz told an audience at the 29C3 Chaos Communication Congress  in Germany.
"Function words are very specific to the writer. Even if you are writing a thesis, you'll probably use the same function words in chat messages. Even if your text is not clean, your writing style can give you away."
[Image: State Library of New South Wales  on Flickr]