Twitter is facing a lawsuit over its link shortening tool and the analytics.
The lawsuit, seeking class action status, will be defended by twitter, which has said, "We believe these claims are meritless and we intend to fight them,"
“Twitter’s algorithms will read through the Direct Message, identify the hyperlink, and replace it with its own custom link, thereby sending the person clicking on the link to Twitter’s analytics servers before passing them on to the original linked-to website,” claims the suit. Twitter Hit By Privacy Lawsuit Over Link Shortening In Private Messages [blogs.wsj.com]