Alfred Redl (March 14, 1864 – May 25, 1913) was an Austrian officer who rose to head the counter-intelligence efforts of Austria-Hungary. He was one of the leading figures of pre-World War I espionage. His term in office was marked by innovation, and he used advanced technology, for the time, to ensnare foreign intelligence agents. But he was himself a paid spy for the Russians. Claims that Redl also worked for the secret services of France and Italy have surfaced much later but they were neither confirmed nor disproved reliably.
Born in Lemberg, Galicia, Austrian Empire (now Lviv, Ukraine), Redl came from a relatively poor family, his father being a railway clerk. His ability enabled Redl to rise quickly within the officer ranks of the Austro-Hungarian Army, in spite of lacking the advantages of wealth or family connections. Redl attended the War School in Vienna, which normally accepted only 50 entrants a year from about a thousand applicants. Acquiring a specialist interest in Russian military issues, Redl joined the Intelligence Bureau of the Austro-Hungarian General Staff and in 1900 was assigned to the Russian Section.
By 1907 Redl had become head of the counter-intelligence branch of the Intelligence Bureau. Promoted to the rank of colonel, Redl greatly improved the methods used by the Austro-Hungarian counter-espionage service, introducing such technological innovations as the use of cameras and primitive recording devices, while creating a database of fingerprint records of persons of interest. However, at the same time, Redl himself became a spy for Russia and his subsequent exposure was largely due to the improvements he had developed himself.
Redl's motives for treason are still unclear. He may have been caught in a compromising position by Russian agents, since he was homosexual and being exposed as such would have been fatal to his career prospects. Actually, Russian military intelligence, based in Warsaw at the time, under the command of Colonel Nikolai Batyushin, had discovered Redl's homosexuality as early as 1901, information that was used to blackmail him into revealing classified information. In 1902 he reportedly passed a copy of Austro-Hungarian war plans to the Russians. General von Gieslingen, Head of Austro-Hungarian military intelligence delegated Redl himself to investigate the source of this leak. In consultation with his Russian contacts Redl identified several low-level agents as Tsarist spies, thereby protecting himself and enhancing his reputation for efficiency.