tedster - 5:36 pm on May 16, 2011 (gmt 0)
It's certainly a legal possibility, in any country where hacking into someone else's server is illegal at least. The same would hold for iframe injection, too - and conceivably even for parasite links.
The problem that would come up for law enforcement is one of scale - sound familiar?
But it seems to me that it's long past time that cyber-crimes be treated as just small nuisances. It's at least as serious as breaking and entering in the physical world, and far beyond mere trespassing or even shoplifting, IMO. Given the financial damages, it's actually worse than breaking and entering and more like the severity of theft.