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Distributed denial-of-service attack (DDoS)

Distributed denial-of-service attack (DDoS):

In computing, a denial-of-service attack (DoS attack) or distributed denial-of-service attack (DDoS attack) is an attempt to make a computer or network resource unavailable to its intended users. Although the means to carry out, motives for, and targets of a DoS attack may vary, it generally consists of the efforts of one or more people to temporarily or indefinitely interrupt or suspend services of a host connected to the Internet.

Perpetrators of DoS attacks typically target sites or services hosted on high-profile web servers such as banks, credit card payment gateways, and even root nameservers. The term is generally used relating to computer networks, but is not limited to this field; for example, it is also used in reference to CPU resource management. (Source:

2012 Data Breach Investigations Report

Section: Research
An insightful study, packed full of useful, well-presented data on information security breaches covering a dataset of 855 confirmed security breaches accounting for a combined 174 million compromised records. Complied with the collaboration of enforcement agencies from around the world, including the US Secret Service, Verizon’s 2012 report shows that many security breaches are the results of more than one threat action (malware, hacking, social, misuse, physic ...   read more

Microsoft Citadel takedown a “PR campaign”, says security blog

Section: News
A Swiss security blog has accused Microsoft of achieving little more than a "PR campaign” with the recent takedown of botnet Citadel, which has actually harmed a lot of projects carried out by security researchers. Last week, the Microsoft Digital Crimes Unit (DCU) carried out an operation dubbed read more

New Prototype Detects DNS-Based Botnets

Section: News
A new prototype system is to be detailed this week which can detect DNS-changing botnets without the need for complex and time-consuming reverse-engineering. The University of Georgia and Georgia Institute of technology are due to present a paper on the system at the Usenix Security Conference in Bellevue, Washington this week. ‘Pleiades’ is ...   read more