In computing, a denial-of-service attack (DoS attack; UK: / dɒs / doss US: / dɑːs / daas[1]) is a cyberattack in which the perpetrator seeks to make a machine or network resource unavailable to its …

Jul 15, 2025 · Distributed Denial-of-Service (DDoS) Attacks: DDoS attacks use multiple systems, often compromised computers (botnets), to attack a single target. Examples are amplification attacks and …

Jan 21, 2022 · Since the first documented cyberattack in 1996, many famous DDoS attacks have brought down websites and lead to data theft or network infiltration.

Dec 24, 2025 · A denial of service (DoS) attack makes an application, service, or network resource unavailable to legitimate users by overwhelming systems with traffic, requests, or state transitions. In …

Nov 15, 2025 · Learn how DoS and DDoS attacks work, their differences, and why critical systems are prime targets. Discover how these cyberattacks disrupt online services.

A DDoS attack attempts to overwhelm a targeted server. Learn about some of the biggest DDoS attacks ever, along with famous DDoS attacks from the past.

In this article, we will explore some of the most notable DoS attacks in history, examining how they were executed, the consequences they had, and the lessons learn ed from these incidents. 1. The 2000 …

Apr 20, 2025 · Explore the different types of DoS attacks and find out ways to prevent them. Learn how to safeguard your systems from denial-of-service threats.

In a DoS attack, users are unable to perform routine and necessary tasks, such as accessing email, websites, online accounts or other resources that are operated by a compromised computer or network.

What is a denial-of-service (DoS) attack? A denial-of-service (DoS) attack aims to obstruct a network or resource by flooding a target with artificial traffic, which restricts user access to the respective service …