Cults and other manipulative groups are an issue of public health and Diane Benscoter has strategies that may help.

Diane Benscoter is the founder of Antidote and the author of Shoes of a Servant: My Unconditional Devotion to a Lie.

Here are some links to additional information about cults and psychological manipulation and how to find support:

Support for Individuals, from Antidote 

Support for Families, from Antidote

Freedom of Mind Institute 

Cult Deprogramming vs. Strategic Interactive Approach from Steven Hassan

Course: Understand Cults: The Basics, by Steven Hassan

Open Minds Foundation: Resources