WikiLeaks’ dump of information this week may be the largest breach of classified information in the CIA’s history. The FBI is probing the leak, which revealed information on approximately 500 CIA projects, each with its own sub-projects, malware and hacker tools. Here are some of the notable CIA initiatives exposed in the trove of documents:

Weeping Angel: A program developed in collaboration with British intelligence that allegedly captures audio—but not video—from peoples’ homes by hacking Samsung smart TVs. According...