Who was the true traitor in the Dreyfus affair?

The true traitor in the Dreyfus affair was actually Major Ferdinand Walsin Esterhazy, who was responsible for the espionage that led to the wrongful conviction of Captain Alfred Dreyfus. The affair exposed deep-seated anti-Semitism and political corruption within the French military and government, as they sought to cover up their mistakes by scapegoating Dreyfus. Ultimately, the scandal revealed the injustices of the judicial system and sparked a broader movement for social and political reform in France.