The source code for Mirai, the malware behind the botnet that launched a massive attack on the Krebs on Security website -- the largest DDoS attack on record -- has been released in the wild, according to Brian Krebs, author of the blog. A hacker who goes by the handle "Anna-senpai," apparently because of increased scrutiny from the cybersec industry, last week announced the release on Hackforums, Krebs said. The code release has heightened fears that the Internet of Things will be flooded with attacks from new botnets.