Since the first denial of service (DoS) was launched in 1974, distributed denial of service (DDoS) and other DoS attacks have remained among the most persistent and damaging cyber-attacks.

Rapid technological advances have made the Internet ubiquitous around the globe. Access speeds and reliability of access are always improving, and as a result, diverse services provided on the Internet are greatly impacting every aspect of our day-to-day lives. Using these services, people routinely depend on the Internet to share confidential and valuable personal and professional information.