denial-of-service attack

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denial-of-service attack

n. Computers
A malicious attack on a network resource that prevents legitimate users from accessing the resource, typically implemented by initiating an overwhelming number of spurious requests for service. Also called DoS attack.
References in periodicals archive ?
jsp) report from cloud service provider Akamai found 2015 was-at the time-the year with the highest number of reported DoS attacks.
The report documents the increase in DoS attacks over a five-year period and analyzes the impact 273 DoS attacks had on data center availability.
The attackers uses the controlled bots (also referred to as zombies) typically large numbers and also distributed beyond various locations for attaining large number of DoS attacks by single or multiple targets.
4] suggested a queuing model for the evaluation of DoS attacks on Voice over IP (VoIP) proxies that is based on the Session Initiation Protocol (SIP).
Depending on a situation, DoS attacks can cause huge damage and loses.
Now, computer engineers John Wu, Tong Liu, Andy Huang, and David Irwin have devised a filter to protect systems against DoS attacks that circumvents this problem by developing a new passive protocol that must be in place at each end of the connection: user and resource.
lt;p>Sabnani said the newest DOS attacks on wireless networks involve repeatedly establishing and releasing connections.
The number of "zombie" computers being used to action these distributed DoS attacks is another unknown, but estimates always range in the millions.
Bot-infected machines are used to launch DoS attacks, which currently stand at over 1,400 each day, while there are reportedly almost 8m phishing attempts each day.
The group has observed that VoIP tools could offer very good cover traffic for DoS attacks because VoIP runs continuous media over IP packets, and the ability to dial in and out of VoIP overlays allows for control of an application via a voice network.
Security strategies for storage networks must take precautions against unauthorized access from the outside, DoS attacks and internal attacks, which comprise 70% of all relevant cases.