The Digital Plague (2008) is the 2nd book in Jeff Somers' Avery Cates series. I've read and enjoyed the first one, and this did not disappoint. I look forward to picking up the others.
from the back of the book:
Avery Cates is a very rich man. He's probably the richest criminal in New York City. But right now, Avery Cates is pissed. Because everyone around him has just started to die -in a particularly gruesome way. With every moment bringing the human race closer to extinction, Cates finds himself in the role of both executioner and savior of the entire world.SF Signal has this: "BOTTOM LINE: This will satisfy readers looking for a fast-paced action story." Publishers Weekly calls it "a strong techno-thriller" though not as strong as the first book in the series, and says, "Cates’s noirish narrative voice stands out as the book’s real strength."