Over the last few days there have been several reports of a new feature being rolled out to Adsense publishers. The new features allows publishers to explicitly list sites / domains that are allowed to use their code.
It’s not clear what will happen to publishers who do not opt in.
From paul:
I haven’t really read much on blogs about this feature, I guess it’s slowly being rolled out to it’s publishers.
From Michele Neylon:
Paul
Most of the new features on large platforms seem to get rolled out slowly – or at least they should!
I just wish the information on it was a bit clearer
Michele