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Full-Text Articles in Engineering
Cyber Profiling For Insider Threat Detection, Akaninyene Walter Udoeyop
Cyber Profiling For Insider Threat Detection, Akaninyene Walter Udoeyop
Masters Theses
Cyber attacks against companies and organizations can result in high impact losses that include damaged credibility, exposed vulnerability, and financial losses. Until the 21st century, insiders were often overlooked as suspects for these attacks. The 2010 CERT Cyber Security Watch Survey attributes 26 percent of cyber crimes to insiders. Numerous real insider attack scenarios suggest that during, or directly before the attack, the insider begins to behave abnormally. We introduce a method to detect abnormal behavior by profiling users. We utilize the k-means and kernel density estimation algorithms to learn a user’s normal behavior and establish normal user profiles based …
Anomaly Detection In Unknown Environments Using Wireless Sensor Networks, Yuanyuan Li
Anomaly Detection In Unknown Environments Using Wireless Sensor Networks, Yuanyuan Li
Doctoral Dissertations
This dissertation addresses the problem of distributed anomaly detection in Wireless Sensor Networks (WSN). A challenge of designing such systems is that the sensor nodes are battery powered, often have different capabilities and generally operate in dynamic environments. Programming such sensor nodes at a large scale can be a tedious job if the system is not carefully designed. Data modeling in distributed systems is important for determining the normal operation mode of the system. Being able to model the expected sensor signatures for typical operations greatly simplifies the human designer’s job by enabling the system to autonomously characterize the expected …