BAGHDAD — The father of the Iraqi spy who spent 16 months undercover inside the Islamic State said Tuesday that his family’s long struggle to receive his son’s pension and death benefits has finally borne some fruit.

Iraqis have been abuzz with the story of Capt. Harith al-Sudani, the man Iraqi officials describe as the country’s most successful spy, since The New York Times published an article on Sunday about him and his secret intelligence unit called Al Suquor, or the Falcons.

As a mole inside the terrorist group, Captain Sudani foiled dozens of planned attacks in the Iraqi capital and provided his Iraqi commanders and the American-led coalition fighting the group a live wire into the senior ranks of the organization. The Islamic State discovered Captain Sudani’s identity and killed him in August 2017, according to Iraqi intelligence officials.

The Sudani family has been trying for a year to get recognition for Captain Sudani’s sacrifice and his pension for his widow and three children, only to be stymied by Iraq’s infamous bureaucracy, according his father, Abid al-Sudani.