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Denial of Service

Denial-of-service (DoS) is an attack that floods a network or server with traffic, making it unavailable to legitimate users.

Denial-of-service (DoS) is a cyber attack in which an attacker floods a network or server with traffic, rendering it inaccessible to legitimate users. The goal of a DoS attack is to disrupt the normal functioning of a system or service, preventing users from accessing it. This is achieved by overwhelming the target system with a flood of requests, data, or traffic, causing it to crash or become unresponsive.

There are several types of DoS attacks, including distributed denial-of-service (DDoS) attacks, which use a network of compromised computers or devices to flood the target system with traffic, making it even harder to defend against. Other types of DoS attacks include amplification attacks, in which an attacker uses a third-party server to amplify the size of their attack, and application-layer attacks, which target specific applications or services running on a server.

The impact of a DoS attack can range from mild inconvenience to severe disruption, depending on the target and the severity of the attack. In some cases, a DoS attack can be used as a smokescreen to cover up other cyber attacks, such as the theft of sensitive data or the installation of malware.

Organizations can defend against DoS attacks by implementing various security measures, including firewalls, intrusion detection and prevention systems, and content filters. In addition, some cloud service providers offer DoS protection as part of their services. However, as cybercriminals continue to develop new and more sophisticated attack methods, it is important for organizations to remain vigilant and keep their security defences up-to-date.

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