Контекст (в статье речь идёт о мафии и частной защите):
"We envisage two different solutions to the problem of protection: 1) the 'internalizing' solution: an entrepreneur produces protection only for himself. (Protection is private and each supplier has himself as the only customer)."

"Internalizing protection is a solution to the problem we have been dealing with so far. It amounts to being a thug or hiring a number of thugs on a permanent basis, who will perform a variety of tasks, such as making sure partners comply with the terms of an agreement, obtaining credits and punishing non-payers."

На ум приходит "интернализационная защита", но такого понятия не существует, да и смысла (в моей интерпретации) оно не несет никакого....