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.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
References in periodicals archive ?
The analysis of commands received by bots from command and control (C&C) servers revealed that the longest DDoS attack of Q2 2019 lasted 509 hours -- almost 21 days.
As A10 Networks defines them, amplified reflection attacks are "a type of DDoS attack that exploits the connectionless nature of the UDP protocol with spoofed requests to misconfigured open servers on the internet".
A DDoS attack is an attempt to make an online service unavailable by overwhelming it with traffic from multiple sources.
However, these attacks have so far appeared only at a low intensity and very sporadically in the systems operated by NASES, while massive attacks started only last Friday.On Monday, June 11, between 22:23 and 22:35, there was a DDOS attack that was roughly 30 times more massive than last weeks, Sojka ntoed, adding that one of its targets was slovensko.
The commission's website earlier came under a DDoS attack from 15 countries.
In the third quarter of 2017, 75 per cent - or three out of every four - Bitcoin exchanges were hit with a DDoS attack.
The largest volumetric DDoS attack observed in Q3 2017 was a multi-vector attack that peaked at approximately 2.5 Gbps and around 1 Mpps for one hour.
Although the DDoS attack mode is simpler, its destruction power to the network is far more than other network attacks.
The largest volumetric DDoS attack observed by Verisign in Q3 2017 was a multi-vector attack that peaked at approximately 2.5 Gbps and around 1 Mpps for one hour.
A DDoS attack is working to make a system inaccessible to planned clients, for the most part by method for a purposeful push to upset administration, including over and over getting to the servers, immersing these with more movement than the site is working to deal with.
Innovation and exploitation fuel DDoS attack landscape : The emergence of botnets that exploit inherent security weaknesses in IoT devices and the release of the Mirai botnet source code have increased attacker ability to launch extremely large attacks.
Many businesses have fallen victim to a DDoS attack this year already, and such is the extreme nature of these types of attacks that they threaten to topple retail- ers altogether -- a threat that could quite clearly be disastrous, particularly during peak sales seasons.