Mosab Hasan Yousef is a Palestinian who worked undercover for Israel's internal security service Shin Bet from 1997 to 2007. Shin Bet considered him its most valuable source within the Hamas leadership: the information Yousef supplied prevented dozens of suicide attacks and assassinations of Israelis, exposed numerous Hamas cells, and assisted Israel in hunting down many militants, including the incarceration of his own father, a Hamas leader Sheikh Hassan Yousef. In March 2010, he published his autobiography titled Son of Hamas. In 1999, Yousef converted to Christianity, and in 2007 moved to the United States. His request for political asylum in the United States was granted pending a routine background check on June 30, 2010.
In 1999, Yousef met a British missionary who introduced him to Christianity. He was baptized in Tel Aviv by a Christian tourist. He left the West Bank for the United States in 2007 and lived some time in San Diego where he joined the Barabbas Road Church.
In August 2008, Yousef publicly revealed his Christianity and renounced Hamas and the Arab leadership, thereby endangering himself and exposing his family in Ramallah to persecution.[ Yousef has also claimed that his aim was to bring peace to the Middle East; he hopes to return to his homeland when there is peace.
Mosab has stated that despite his conversion to Christianity, "Religion steals freedom, kills creativity, turns us into slaves and against one another. Yes, I am talking about Christianity as well as Islam. Most Christians I have seen, seem to have missed the point, that Jesus redeemed us from religion. Religion is nothing but man's attempts to get back to God. Whether it is Islam, Christianity, Judaism, Buddhism, Hinduism, animism, any ism. Religion can't save mankind. Only Jesus could save mankind through his death and resurrection. And Jesus is the only way to God.
Yousef's autobiography, Son of Hamas: A Gripping Account of Terror, Betrayal, Political Intrigue, and Unthinkable Choices, written with the assistance of Ron Brackin, was published in March 2010.
A documentary adaptation of Son of Hamas titled The Green Prince, directed and written by Nadav Schirman, premiered at the 2014 Sundance Film Festival, where it won the Audience Award for World Cinema: Documentary.