
Denial-of-service attack - Wikipedia
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 …
Understanding Denial-of-Service Attacks - CISA
Feb 1, 2021 · What is a denial-of-service attack? A denial-of-service (DoS) attack occurs when legitimate users are unable to access information systems, devices, or other network resources due …
Denial of Service and Prevention - GeeksforGeeks
Jul 23, 2025 · Denial of Service (DoS) is a cyber-attack on an individual Computer or Website with the intent to deny services to intended users. Their purpose is to disrupt an organization's network …
Denial-of-Service (DoS) Attacks: Types & Prevention - Rapid7
Learn how denial-of-service (DoS) attacks work, the different types—including DDoS—and how to prevent service disruption using layered defense strategies.
What is a denial-of-service (DoS) attack? - TechTarget
Feb 13, 2025 · A denial-of-service (DoS) attack is a security threat that occurs when an attacker makes it impossible for legitimate users to access computer systems, networks, services or other IT resources.
What is a denial-of-service (DoS) attack? - Cloudflare
What is a denial-of-service attack? A denial-of-service (DoS) attack is a type of cyber attack in which a malicious actor aims to render a computer or other device unavailable to its intended users by …
What Is a Denial of Service (DoS) Attack? - Palo Alto Networks
A denial-of-service (DoS) attack is a cyber attack that inundates a system, application, or network with excessive traffic or resource requests, rendering it unavailable to legitimate users and disrupting …
What Is a Denial of Service (DoS) Attack? | CrowdStrike
A Denial-of-Service (DoS) attack is a cyberattack that floods a machine or network with false requests in order to disrupt business operations.
Denial-of-Service (DoS) Attacks: What You Need to Know
Nov 10, 2025 · By the late 1990s and early 2000s, distributed denial-of-service (DDoS) attacks emerged. In these attacks, multiple systems—often compromised computers known as “bots”—work …
What is a DDoS Attack? DDoS Meaning, Definition & Types | Fortinet
DDoS Attack means "Distributed Denial-of-Service (DDoS) Attack " and it is a cybercrime in which the attacker floods a server with internet traffic to prevent users from accessing connected online …