What is the most feared dog in the world?

I'm curious, could you elaborate on the notion of the "most feared dog in the world"? Is this a reference to a specific breed known for its aggressive nature or a particular dog that has gained notoriety for its behavior? Are there any factors that contribute to a dog being considered "feared," such as size, strength, or reputation? And furthermore, is this fear justified, or is it often a result of misconceptions or stereotypes about certain breeds?