If LulzSec had accepted the money, it's likely to become a money trail. "According to Richardson and Lyon, the NHTCU encouraged Richardson to wire two [DDoS] extortion payments of a few thousand dollars each to separate Western Union offices in Eastern Europe. The NHTCU wanted to nab anyone who showed up to take the cash. (NHTCU won't confirm this; the spokeswoman said the unit does not discuss investigative tactics.) [0]"
[0] http://www.csoonline.com/article/220336/how-a-bookmaker-and-...