Security DoS conditions
This is one of the most severe classes of Denial of Service attacks as it normally only requires a single attacking machine to take down an application server. There are many prospective areas for security review of application DoS conditions, specifically – improper handling of data, encryption and compression services, data parsing and processing, user session management, etc.
In our many years of experience, we are yet to see the first web application that would not be susceptible to application level DoS before its first availability security assessment.