That's according to ANSA, Ukrinform reports.
Frigate captain Walter Biot, 58, was found guilty of selling classified documents to a Russian operative with the Russian embassy in Rome.
The judges recognized general extenuating circumstances in the case, while military prosecutors requested that Biot be handed a life term.
The prosecutors presented images purportedly showing Biot using his cell phone to take photos of a series of documents and a computer screen.
"Some of the 19 documents photographed by Biot were highly reserved NATO secrets and one was a top secret document," a prosecutor said.
As Ukrinform reported earlier, Italy’s foreign ministry as part of the espionage probe expressed a protest to the Russian ambassador in Italy and expelled two Russian embassy officials in 2021.