Board Thread:Theories and Speculation/@comment-30172350-20170617091148/@comment-734582-20170617144121

Ririblob wrote: he was aware of most of it Judging by Onoki, Kisame, Rasa, etc half the stuff Danzo pulled was pretty in line with what other villages did. The really extreme stuff (self-experimentation, Izanagi, collaboration with Orochimaru) was stuff Hiruzen wasn't aware of.