Coach Jorge Luis Pinto called it "embarrassing" after a drone was spotted hovering near an official training session -- even though Australian reports said it was being flown by children.
Pinto has also reportedly claimed that Honduran media leaked information to Australia, and suggested the Socceroos swept for hidden cameras ahead of Friday's 0-0 first-leg draw in San Pedro Sula.
"I think the incident is embarrassing for such an advanced country. I think it's a pity," Pinto said, when asked about the drone.
He added: "Let's not be naive. It's espionage in football that begins to happen with this technology. It needs to be controlled.
"Like (the video assistant referee) made its way into football, drones have made their way into espionage."
Australia coach Ange Postecoglou earlier brushed off the claim of an information leak, saying he was "not really concerned about it to be honest".
"We are flat-out focusing on ourselves. There was a fair bit of drama around before the first game, again we stayed right out of it," he said.
Mathew Leckie and Mark Milligan return from suspension, while Robbie Kruse also appears to have recovered from injury.
- Longest campaign -
====================
Both teams made the long trip to Sydney for the return game but the Australians arrived 24 hours earlier, earning extra recovery time, by splashing out around Aus$1 million ($760,000) on a chartered flight.
"This has been the longest World Cup campaign taken by any nation in the amount of games played and the kilometres travelled, so you don't want that to all mean nothing," Postecoglou said.
They are now targeting their fourth straight World Cup, while Honduras can reach their third in a row with a surprise victory in Sydney.
Cahill, 37, who scored twice as Australia edged Syria to reach the intercontinental playoff, said he was no longer thinking about the injury that kept him out of the first leg.
"Once I'm available for selection I don't think about my ankle or anything like that," the Socceroos' record goal- scorer said.
"After this game all of us have plenty of time to put our bodies back together, it's a small sacrifice for such a big return.
Disclaimer: No Business Standard Journalist was involved in creation of this content
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