One of the world’s largest humanitarian charities has been duped for years into funding the Hamas terror organization, the Shin Bet security agency revealed on Thursday.

The World Vision group, a multi-billion dollar Christian charity with more than 45,000 employees, unknowingly funded the Hamas terror group in Gaza for roughly a decade after a member of Hamas, Muhammad Halabi, infiltrated World Vision in 2005.

According to the Shin Bet’s report Thursday, Halabi funneled millions of dollars intended for humanitarian use towards the terrorist group.

By 2010, Halabi had reached a senior position within World Vision, leading its Gaza branch, enabling him to divert more than $7 million annually from civilian needs to Hamas coffers.