Security professionals have years of experience logging and tracking network security events to identify unauthorized or malicious activity on a corporate network. Unfortunately, many of today's attacks are focused on the application layer, where the fidelity of logging for security events is less robust. Most application logs are typically used to see errors and failures and the internal state of the system, not events that might be interesting from a security perspective. Security practitioners are concerned with understanding patterns of user behavior and, in the event of an attack, being able to see an entire user’s session. How are application events different from network events? What type of information should security practitioners ensure software developers log for event analysis? What are the types of technologies that enable application-level logging and analysis? In this presentation, John Dickson will discuss what should be present in application logs to help understand threats and attacks, and better guard against them.