Size
The size of the Srizbi botnet is estimated to be around 450,000 compromised machines, with estimation differences being smaller than 5% among various sources. The botnet is reported to be capable of sending around 60 billion spam messages a day, which is more than half of the total of the approximately 100 billion spam messages sent every day. As a comparison, the highly publicized Storm botnet only manages to reach around 20% of the total amount of spam sent during its peak periods.
The Srizbi botnet is showing a relative decline after an aggressive growth in the amount of spam messages sent out in mid-2008. As of 13 July, the botnet is believed to be responsible for roughly 40% of all the spam on the net, a sharp decline from the almost 60% share in May.
Read more about this topic: Srizbi Botnet
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“Beauty depends on size as well as symmetry. No very small animal can be beautiful, for looking at it takes so small a portion of time that the impression of it will be confused. Nor can any very large one, for a whole view of it cannot be had at once, and so there will be no unity and completeness.”
—Aristotle (384 B.C.–322 B.C.)