INDONESIAN computer hackers have hijacked a Cowboys supporters website, asking fans to tell the Federal Government to "stop spying on Indonesia".

The unofficial Cowboys Stampede website, which used to be a platform for fans to show their support for the rugby league club, now only shows a bizarre message saying it has been "hacked by Ichens".

It comes after it was revealed Australian spies tapped the mobile phone of Indonesian president Susilo Bambang Yudhoyono.

Indonesian computer criminals are thought to be responsible for the work, with the only link on the home page going to an Indonesian chat room.

Site administrator Scott Stidston said it was strange the Cowboys Stampede web page had become a target.

"I don't know what's happened or who's hacked it ... I don't even know why they would want to," he said.

"It was hacked a month or two ago and people were saying they were having problems on the site.

Hackers replaced the Cowboys Stampede content with the message "Tell To Your Goverment Stop Spying On Indonesia !!!".

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