In computing, a denial-of-service attack (DoS attack) is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by … See more

Panix, the third-oldest ISP in the world, was the target of what is thought to be the first DoS attack. On September 6, 1996, Panix was subject to a See more

Denial-of-service attacks are characterized by an explicit attempt by attackers to prevent legitimate use of a service. There are two general … See more

The United States Computer Emergency Readiness Team (US-CERT) has identified symptoms of a denial-of-service attack to include:
• unusually … See more

Attack tools
In cases such as MyDoom and Slowloris, the tools are embedded in malware and launch their attacks without the knowledge of the system owner. Stacheldraht is a classic example of a DDoS tool. It uses a layered structure … See more

Defensive responses to denial-of-service attacks typically involve the use of a combination of attack detection, traffic classification and … See more

An unintentional denial-of-service can occur when a system ends up denied, not due to a deliberate attack by a single individual or group … See more