Forum Moderators: martinibuster
Anyone has dealt with this kind of "competitor will kill adsenes account" situation?
I would tell your friend to take this chance to double check the security of his site, notify his host of the threat so they can take any possible precautions, notify AdSense of the threat so they have it on record, and backup everything on the site.
It may just be an idle threat, but taking the opportunity to double-check the security measures and take a few extra precautions won't hurt.