Based on declassified reports in the Central Zionist Archives, this article brings to light a virtually unknown disinformation project implemented by the Jewish Agency (the governing body of the Yishuv before 1948) in the Arab world during the 1936-39 Palestinian revolt.  Operating via a JA front organization—an Arabic-language news agency set up in Cairo—and out of the Jerusalem-based JA Political Department’s intelligence services, the project involved inter alia the planting of fabricated articles in the Lebanese and Syrian press with the aim of influencing public opinion.  Whatever the project’s impact, the article provides insights into the Zionist leadership’s thinking, internal debates, and operating methods, and shows the degree of corruption that existed in certain segments of the Arab elite.