The Devil's Code - John Sandford

When con artist Kidd learns of a colleague's death, he doesn't buy the story his friend was caught raiding the files of a high-tech corporation. Kidd thinks it was what his friend already knew that got him killed. Now Kidd and LuEllen infiltrate the firm to discover its secrets, but meet an unknown assassin hell bent on conning the life out of the ultimate con artists. \nWhen Kidd--artist, computer whiz, and professional criminal--learns of a colleague's murder, he doesn't buy the official story: that a jittery security guard caught the hacker raiding the files of a high-tech Texas corporation. It's not what his friend was looking for that got him killed. It's what he already knew. For Kidd and LuEllen, infiltrating the firm is the first move. Discovering the secrets of its devious entrepreneur is the next. But it's more than a secret--it's a conspiracy. And it's landed Kidd and LuEllen in the cross-hairs of an unknown assassin hellbent on conning the life out of the ultimate con artists...