Fellow blackhatters, This is a slightly backwards advice request. I appreciate the understanding of readers. Someone I know has been being stalked by a particularly persistent, unidentified person online for years. He uses massive amounts of twitter accounts (created with proxies or some type of bot) that tweet at her within seconds of each other for hours. He also spam messages her blogs, etc from various proxies. She sets networks to private until it stops, but then he will start again weeks later. The threats he makes range from rape & violence. I get that trolling happens and people can be obnoxious online, but this has went on for years and is really over the top. Obviously this guy using proxies makes him pretty damn hard to find. It seems to me that he is fairly knowledgeable on exploits/proxies/etc. Does anyone have any sort of clever idea to track back to who this guy's ISP is, his real IP Address, or anything like that? Obviously law enforcement won't be much help without being able to get around these proxies and figure out where this is coming from. Appreciate any advice and your all's restraint from posting silly, offensive replies.