A few years ago I thought of the possibility of click fraud being used against webmasters but it seemed unlikely. However after the recent trends in virii and bot masters using extortion this seems like a new avenue for thier extortion to accompany. Firstly, I know this is a definate possibility as before writing this paper, I wrote a piece of software that would manage to very realisticly using proxies click advertisements. However due to the usage of proxies it would obviously be detected as fraud clicks. Now, how it works: Attacker uses thier software (â€clickerâ€) to mass click the webmaster’s (â€targetsâ€) advertisements. The advertiser ofcourse notices the sudden increase in CTR and the number of fraud clicks. Based on the advertiser’s TOS, the target publisher is banned from the advertisers program potentially losing future and past revenue. Read More: http://blogs.hackerscenter.com/dcrab/?p=18