Security B-Sides is a low-key event for those who can’t afford to attend Black Hat or DefCon. Security professionals will be giving talks at another event at the same time. The talks themselves are often surrounded by drama, though that part has calmed down in the last couple of years. The most important part of the Las Vegas events is the networking, anyway. The content is worth it. The talks may entertain, but it’s the relationships you forge over coffee or a meal that will likely lead to useful collaborations and lines of support.”]
Source: https://www.csoonline.com/article/2134790/black-hat–defcon-and-b-sides-survival-guide–2011.html