Alonso admits giving spy evidence to FIA
But, with rumors circulating at Monza that his actions were vindictive and designed to help him ease out of his unhappy situation at McLaren, the Spaniard insisted that the FIA forced his hand.
"We were obligated to cooperate," Alonso, 26, is quoted as saying by the Spanish newspaper Diario As.
It emerged on Friday at the scene of the Italian grand prix that Max Mosley wrote to all McLaren drivers, threatening them with "serious consequences" if they did not give up written evidence – such as emails – that may implicate their team.
"I am a sportsman who loves this sport, and a professional," Alonso said, "and the only option I see is to support the investigation and to contribute when I am required.
"And when the highest authority of a sport obligates you to cooperate, there is no way to object — it is not a choice."