Home > Terms > English, UK (UE) > Denial of service (DOS)

Denial of service (DOS)

A denial of service (DoS) attack is an incident in which a user or organisation is deprived of the services of a resource they would normally expect to have. In a distributed denial-of-service, large numbers of compromised systems (sometimes called a botnet) attack a single target.

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  • Category: Malware
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Related terms

denial of service (DoS)
Software; Anti virus

A Denial of Service (DoS) attack is an attack specifically designed to prevent the normal functioning of a system and thereby to prevent lawful access to the system by authorized ...

denial of service (DoS)
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1. The prevention of authorized access to resources or the delaying of time-critical operations. 2. The result of any action or series of actions that prevents any part of an ...

denial of service (DOS)
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This attack targets a computer, server, or network and is either an intentional or accidental byproduct of instruction code that is either launched from a separate network or ...

denial of service (DOS)
Software; Malware

A denial of service (DoS) attack is an incident in which a user or organization is deprived of the services of a resource they would normally expect to have. In a distributed ...

denial of service (DoS)
Software; Operating systems

A type of network-based attack in which a malicious user sends massive amounts of unsolicited (and sometimes useless) data to a recipient system or network, causing congestion and ...

denial of service (DOS)
Software; Malware

A condition that occurs when the resources of a target computer are deliberately exhausted, effectively overwhelming the computer and causing it to fail to respond or function for ...

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Software; Malware

A trojan proxy is a type of trojan that installs a proxy server on a computer. A proxy server installed by a trojan can be configured so that all Internet requests made by the ...

typosquatting
Software; Malware

A form of cybersquatting where someone registers a domain name of a highly visited website, except with typographical errors (for example, microsooft.com). Also known as ...

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Software; Malware

A condition in which the data written into a buffer is not validated; this may cause errors in the program when the data in the buffer is read.

uninitialized memory
Software; Malware

Memory space that contains uninitialized value, which may leave the memory space in an unexpected state with it is accessed or used.

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Software; Malware

A pointer that contains an uninitialized value, which might not point to a valid memory location and result in the application trying to read or write from this invalid location.

uninitialized variable
Software; Malware

A variable that has not been initialized, which may lead to unexpected results if an application calls that variable at that time.

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