Denial-of-service attack

In computing, a denial-of-service attack is a cyber-attack in which the perpetrator seeks to make a machine or network resource unavailable to its intended users by temporarily or indefinitely disrupting services of a host connected to the Internet. 


DDoS attacks can last as long as 24 hours, and good communication can ensure that the cost to your business is minimized while you remain under attack.

Broadly speaking, there are several approaches to stopping DDoS attacks. The most common solutions rely on do-it-yourself (DIY) methods, on-premise mitigation appliances and off-premise cloud-based solutions.


The Difference Between DoS and DDos Attacks
The DoS attack typically uses one computer and one Internet connection to flood a targeted system or resource. The DDoS attack uses multiple computers and Internet connections to flood the targeted resource.

DDOS refers to a Distributed Denial of Service. ... While some observers defend DDOS attacks as a form of mass demonstration against an offending website, it is illegal under the Federal Computer Fraud and Abuse Act. Violators are subject to prison sentences of up to 10 years and a fine of up to $500,000.

People using a tool to conduct distributed denial-of-service (DDOSattacks against other websites in support of WikiLeaks can easily be traced, according to computer security researchers.

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