Fifteen videos were posted online [in October] showing senior leaders of the Mormon Church in private meetings discussing issues including same-sex marriage, marijuana, Somali pirates and even whether the church could be vulnerable to WikiLeaks. The church has acknowledged that the videotapes are authentic.
… [T]his leak of videos from church headquarters in Salt Lake City is the work of disaffected Mormons who found one another online, in a Reddit forum for ex-Mormons…
The videos are uploaded onto a YouTube channel called Mormon Leaks.
Read more about it at the New York Times.