The German magazine Der Spiegel has revealed that two additional Australian nationals who worked alongside Ben Zygier at the Italian-based front company allegedly founded by the Mossad were known as Paul Y and David Z. The magazine also tracked down the company's office in Milan.
According to the report, "Zygier and two other Australian Jews who also worked for the Milan firm were reported to have been successful agents." The paper then quotes an Australian intelligence source as saying: "The nature of their business gave them access to military and secret installations." (Ynet)