Has this paper been peer reviewed?
"The number of attack nodes simply linearly affects the financial damage. A botnet of 100,000 nodes will do the same damage in one month that 1,000 nodes would do in a year."
If it is linear, a botnet of 100,000 nodes will do the same damage in 3 days that 1,000 nodes would do in a year
This is shown as a quote, so I am posting a comment not a corrections email. If it is actually a Register transcription error my apologies to the authors.