"On the modern web, many sites have third party content, be it through maps, embedded objects, ads, or through other types. Users pay little attention to the source of this content since it is such a common occurrence. Unfortunately, this content can be an avenue for third parties to discover private information about the user. Previous work has found these types of leaks in social networking sites. By logging headers during the usage of 120 sites across 12 major categories, we were able to find leakage of a user’s private information occurring on many other types of popular web sites. We found leakage on 75% of the sites we looked at and at least one instance in each of the categories. Based on the leaks we found, we propose a classification of the types of leakage that can occur via the HTTP header and use this system to analyze our results."

Insider threat by employees in organizations is a problematic issue in today’s fast-paced, internet-driven society. Gone are the days when securing the perimeter of one’s network protected their business. Security threats are now mobile, and employees have the ability to share sensitive business data with hundreds of people instantaneously from mobile devices. While prior research has addressed social networking topics such as trust in relation to information systems, the use of social networking sites, social networking security, and social networking sharing, there is a lack of research in the mindfulness of users who spill sensitive data contained within images posted on social networking sites (SNS). The author seeks to provide an understanding of how non-malicious spillage through images relates to the mindfulness of employees, who are also deemed insiders. Specifically, it explores the relationships between the following variables: mindfulness, proprietary information spillage, and spillage of personally identifiable information (PII). A quasi-experimental study was designed, which was correlational in nature. Individuals were the unit of analysis. A sample population of business managers with SNS accounts were studied. A series of video vignettes were used to measure mindfulness. Surveys were used as a tool to collect and analyze data. There was a positive correlation between non-malicious spillage of sensitive business, both personally identifiable information and proprietary data, and a lack of mindfulness.

Law firms maintain and store voluminous amounts of highly confidential and proprietary data, such as attorney-client privileged information, intellectual properties, financials, trade secrets, personal, and other sensitive information. There is an ethical obligation to protect law firm client data from unauthorized access. Security breaches jeopardize the reputation of the law firm and could have a substantial financial impact if these confidential data are compromised. Information security policies describe the security goals of a law firm and the acceptable actions and uses of law firm information resources. In this dissertation investigation, the author examined the problem of whether information security policies assist with preventing unauthorized parties from accessing law firm confidential and sensitive information. In 2005, Doherty and Fulford performed an exploratory analysis of security policies and security breach incidents that highlighted the need for research with different target populations. This investigation advanced Doherty and Fulford's research by targeting information security policies and security breach incidents in law firms. The purpose of this dissertation investigation was to determine whether there is a correlation between the timing of security policy development (proactive versus reactive policy development) and the frequency and severity of security breach incidents in law firms of varying sizes. Outcomes of this investigation correlated with Doherty and Fulford's general findings of no evidence of statistically significant relationships between the existence of a written information security policy and the frequency and severity of security breach incidents within law firms. There was also a weak relationship between infrequency of information security policy updates and increase of theft resources. Results demonstrated that, generally, written information security policies in law firms were not created in response to a security breach incident. These findings suggest that information security policies generally are proactively developed by law firms. Important contributions to the body of knowledge from this analysis included the effectiveness of information security policies in reducing the number of computer security breach incidents of law firms, an under represented population, in the information assurance field. Also, the analysis showed the necessity for law firms to become more immersed in state security breach notification law requirements.