noun
information bureau; intelligence department
Refers to an organizational unit responsible for collecting, managing, or analyzing information; in government, military, or security contexts it often means an intelligence department.
彼は政府の情報部で海外情勢を分析している。
He analyzes overseas affairs in the government's intelligence department.
情報部は集めた資料を各部署に共有した。
The information bureau shared the collected materials with each department.
A 課 is usually a smaller section within an organization, while 情報部 suggests a department-level unit.
More specifically an espionage or intelligence-gathering department; 情報部 can be broader and less explicitly spy-related.
A transparent Sino-Japanese compound: 情報 means information or intelligence, and 部 means department, section, or division.