About Bryan Sullivan

Bryan Sullivan is a development manager at SPI Dynamics, a Web application security products company. Bryan manages the DevInspect and QAInspect Web security products, which help programmers maintain application security throughout the development and testing process. He has a bachelors degree in mathematics from Georgia Tech and 11 years of experience in the information technology industry. Bryan is currently coauthoring a book with noted security expert Billy Hoffman on Ajax security, which will be published in summer 2007 by Addison-Wesley.
Preventing a Brute Force or Dictionary Attack

To understand and then combat a brute force attack, also known as a dictionary attack, we must start by understanding why it might be an appealing tool for a hacker.