Ex-deputy director of the Mossad to three chiefs, Aliza Magen, passed away on Monday at the age of 88.

She was the highest-ranking female to have ever served in the spy agency.

During her years in the organization, “Magen was involved in hundreds of intelligence activities and significant operations, and served in a variety of command positions both in Israel and abroad,” the Prime Minister’s Office said in a statement on behalf of the agency.