In theory, there has always been a perceived vulnerability for sabotage in Google Adsense. Check out this amusing threat Shoemoney received.
“This is a warning and if you donâ€™t pay attention to it you will suffer from bad turns.
All your income is through Google Adsense and if you do not cooperate with us we will stop this income source. We would like you to pay us the total amount of USD 200 each month…. If you do not pay this amount we will have to close your account by the help of special robots…“
Not only is there potential for using rogue bots on your site, saboteurs could use your code on other sites.
However, Barry has spotted some reassuring noises from Google:
“But regarding adsense abuse, our fraud team is pretty thorough. We wouldn’t automatically assign culpability to the account holder, as we know where clicks are coming from….people are not allowed to transplant the code to their site without your permission; if someone has used it without your consent please let us know“