Triads
This massive Chinese crime syndicate is actually a conglomerate of gangs that has over 2.5 million members all over the world who dabble in trafficking, murder, and political influence. While each branch has its own customs and practices, the triads as a whole are known for their very organized structure and intense, bloody rituals. It’s their large membership, incredible organization, and systemic influence that makes the Triads the most notorious gang on our list.