From: InfoSec News (alertsinfosecnews.org)
Date: Fri Dec 17 2010 - 01:16:45 CST

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http://www.zdnet.co.uk/news/security-threats/2010/12/16/size-of-ddos-group-doesnt-matter-security-agency-says-40091193/

By Jack Clark
mappingbabel
ZDNet UK
16 December, 2010

The number of people needed to launch a successful denial-of-service
attack has been overestimated by the press, according to the European
Network and Information Security Agency.

Attacks such as those by pro-Wikileaks groups need significantly fewer
participants than has been reported, the European Network and
Information Security Agency (Enisa) said on Tuesday. Visa was taken down
by a distributed denial-of-service (DDoS) attack from roughly 500
machines, Ulf Bergstrom, Enisa's spokesman, told ZDNet UK on Thursday.

"An attack can be constituted by much fewer machines [than was thought],
and that is quite concerning and quite an important point to make,"
Bergstrom said.

DDoS attacks against Wikileaks, Visa, PayPal and various government
sites all demonstrated that "size doesn't matter: the number of
computers used in the attacks was relatively small (in the hundreds).
Some press reports claim over six times the real number, which is
indicative of the unreliability of information about botnets", Enisa
wrote in a statement on Wednesday.

[...]

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