Please don't post insinuations about astroturfing, shilling, brigading, foreign agents, and the like. It degrades discussion and is usually mistaken. If you're worried about abuse, email hn@ycombinator.com and we'll look at the data.
Brian Krebs, the cybersecurity expert behind Krebs on Security, primarily generates revenue through banner advertisements displayed on his website. His website, which receives over a million visits per month, attracts this income. While he also receives information from law enforcement and other sources, his primary income stream is advertising, according to a WSJ article.
