The targeted attack — designed to make a buck for the hacker or insider who initiates it — is in, in, in. The “black market” for stolen computer data is growing by leaps and bounds, according to experts who study computer crime and corporate espionage. “Before 1998, about 90 to 95 percent of all intrusions were done by individuals hacking out of curiosity,” says Chris Pierson, founder of the cybersecurity and cyberliability practice at Lewis and Roca LLP, a Phoenix law firm. “We’re seeing a rapid growth in cooperative attacks, where an insider works in concert with some sort of external source to make a financial gain,” says Brian Contos, chief security officer at ArcSight and author of the new book, Enemy at the Water Cooler, which outlines some of the recent trends and exploits in corporate computer crime. “It’s not just hackers looking randomly for easy points of entry — these are attacks on specific companies.”