Dorot was born in 1916 in Poland as Isidore Roth. He moving to Israel in 1936, served in the Jewish Settlement Police, and joined the British Army during World War II. Upon his discharged he was recruited to the Haganah Intelligence Service.
Following the establishment of the state of Israel Dorot joined Shin Bet.
- Izi Dorot, Israel Security Agency, accessed 8 May 2013.
- Yossi Melman and Dan Raviv, Every Spy a Prince: The Secret History of Israel's Intelligence Community, Houghton Mifflin, 1991, p.43.