The Wall Street Journal shares the "wild behind-the-scenes story" of how the world's largest and most destructive botnet was uncovered and taken down, writes Slashdot reader sturgeon. "At times, the network known as Kimwolf included more than a million compromised home Android devices and digital photo frames -- enough DDoS firepower to disrupt internet traffic across the U.S. and beyond." From the report: Sitting in his dorm room at the Rochester Institute of Technology, Benjamin Brundage was closing in on a mystery that had even seasoned internet investigators baffled. A cat meme helped him crack the case. A growing network of hacked devices was launching the biggest cyberattacks ever seen...