The triumphant All Blacks have sensationally accused the Wallabies of spying in a bitter aftermath to an enthralling Tri-Nations decider.

New Zealand assistant coach Steve Hansen dropped a bombshell by alleging a spy-ring, claiming Channel Seven secretly taped at least one training session - maybe more - and handed it to the Australians.

The Wallabies strenuously denied they received or watched All Blacks training footage in their pre-match preparations.

"There's absolutely no foundation to those allegations and to comment further would be giving them a level of credibility they simply don't deserve," said a team spokesman.

Channel Seven also rubbished the espionage claims after admitting a cameraman shot part of their unscheduled Friday afternoon captain's run at the Brisbane Broncos' Red Hill headquarters.

"We would never give the Wallabies our vision and if the Wallabies can watch our news bulletin and make something of a two-and-a-half-second grab shot through the trees, then Robbie Deans is a better coach than we all give him credit for," said reporter Rohan Welsh.

But Hansen was in no doubt Australia used extensive footage to their advantage during New Zealand's thrilling 28-24 comeback victory at Suncorp Stadium.

"It's a fact and it's really disappointing," he said.

"Channel Seven it was. I definitely know of one session and they gave it to the Australians and it was disappointing that the Australians used it.

"We know they did because they (the Wallabies) told us.

"One of their personnel told us. They told one of our guys (after the game) and it's pretty disappointing."

The episode is sure to increase long-held tensions between Deans and Hansen.

There's been little love lost between the pair, particularly after both were seen as the men to lead New Zealand to the 2011 World Cup before Graham Henry was surprisingly retained as head coach with a view to lieutenant Hansen taking over in 2010.

Hansen denied it was Deans who revealed the skulduggery because he was "too cunning for that".

New Zealand have been paranoid about outsiders watching training since Hansen similarly alleged England spied on them during the 2005 end-of-season tour.

The next year Wallabies assistant coach Scott Johnson attended a Bledisloe Cup press conference dressed in camouflage army fatigues with "Can I sit here?" printed on the front and "Paranoia is curable" on the back.

It was a reference to New Zealand objections of his touchline positioning in the previous Test in Christchurch.

All Blacks management traditionally close all but the first 20 minutes of their sessions to the media and public, which are policed by security guards.

In contrast, the Wallabies keep their training open and did this week with sessions viewed by fans from both countries.

Twice last week New Zealand made late changes to their training venues, which succeeded in throwing the media, including the Friday session at Red Hill which had originally been earmarked for later in the day at Suncorp Stadium.

On receiving a tip-off, Seven's cameraman was told by the All Blacks security not to film the session.

"We saw them there on the day and they got told to go but we didn't realise they were filming from across the road," Hansen said.

"It was at least one we definitely know of and if they've done one they've done more."

"It's hard enough to win games without the opposition knowing what you are going to do before you do it.

"The disappointing thing is that it's going to reflect back the next time we're here when fans want to watch us."

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