A popular Web site that helps connect young women with so-called “Sugar Daddies” has fixed a major security hole that – apparently since its inception two years ago — allowed anyone with a Web browser to view the private negotiations between site members. This discovery highlights the potential privacy pitfalls of placing too much personal information online, and fully trusting social networking sites. Most online communities, such as Facebook, provide residents a way to keep their public and private online personas separate. In many cases, when a breach between those two worlds occurs, it’s because the user misconfigured or misunderstood their privacy settings, as I’ve documented with users of Google’s Calendar service. But when the social networking community itself is responsible for the misconfiguration, the results could be disastrous and long-lasting. Seekingarrangement.com, an adult social networking site that boasts some 300,000 registered users, contained a weakness that allowed anyone to