Fact and Fiction
¨ In August 2001, the University of Michigan ran a
comprehensive scan of eBay
Examined two million images
17,000 possibles for having steganographic content
15,000 possibles for JPHide
Extensive dictionary attacks by a cluster of 60
networked machines, using Stegbreak, found nothing.
(test “tracer” images were successfully found, identified, and
cracked open)
For USENET, 200 clustered machines
Still found nothing
More info: www.citi.umich.edu/u/provos