
What is a distributed denial-of-service (DDoS) attack?
A distributed denial-of-service (DDoS) attack is a malicious attempt to disrupt the normal traffic of a targeted server, service or network by overwhelming the target or its surrounding infrastructure with a …
Denial-of-service attack - Wikipedia
In computing, a denial-of-service attack (DoS attack / dɒs / doss[1]) is a cyberattack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by …
What Is a DDoS Attack? | Microsoft Security
A distributed denial-of-service (DDoS) attack targets websites and servers by disrupting network services. Learn about DDoS attacks and how to prevent them.
What is a DDoS Attack? DDoS Meaning, Definition & Types | Fortinet
Learn about DDoS Attack meaning, attack types, and examples. DDoS Attack means "Distributed Denial-of-Service (DDoS) Attack " and it is a cybercrime in which the attacker floods a server with …
What Is a DDoS Attack? - Cisco
A distributed-denial-of-service, or DDoS attack is the bombardment of simultaneous data requests to a central server. The attacker generates these requests from multiple compromised systems to …
What Is a DDoS Attack? Types, Examples & Prevention
Feb 12, 2026 · Learn what a DDoS attack is, how it works, and how to protect your organization. Explore types, real-world examples, and proven mitigation strategies.
What is a DDOS Attack, and How Does It Work? | Okta
Apr 28, 2025 · A distributed denial-of-service (DDoS) attack occurs when multiple compromised systems coordinate to flood a target’s network, servers, or applications with malicious traffic, exhausting …
DDoS attacks: Definition, examples, techniques, and how to defend …
What is a DDoS attack? A distributed denial of service (DDoS) attack is when an attacker, or attackers, attempt to make it impossible for a digital service to be delivered. This could be...
What Is a DDoS Attack? - Palo Alto Networks
Distributed denial-of-service (DDoS) is a tactic and attack pattern rather than a vulnerability. DDoS attacks fall under TA0040: Impact in the MITRE ATT&CK framework, most commonly aligning with …
DDoS Attacks Explained | Office of the Chief Information Security Officer
Oct 27, 2025 · That’s essentially how a Distributed Denial of Service (DDoS) attack works. Instead of phone lines, attackers target websites or online services. They hijack thousands — even millions — …