Australian authorities are yet to formally request the extradition of a teenage computer hacking suspect, more than a fortnight after he boasted about fleeing to Europe while under police surveillance.

Key points: Dylan Wheeler fled to the Czech Republic after he was charged over involvement in a hack

Dylan Wheeler fled to the Czech Republic after he was charged over involvement in a hack He said it was "scary" how easily he was able to leave

He said it was "scary" how easily he was able to leave A Czech government spokesman says Australia is yet to request Wheeler's extradition

Dylan Wheeler from Perth was just 17 when he was charged over involvement in a major international hack of Microsoft and US Army computers.

The FBI says the hackers are believed to have stolen intellectual property worth $US100 million.

Almost three years later, facing a possible 10-year jail sentence, Mr Wheeler fled the country.

"I left Australia because my case went on for about two to three years and it was getting nowhere," Mr Wheeler said from his new home in the Czech Republic.

"It was quite scary that I was able to leave on my Australian passport, because they actually have a system called PACE ... it's a system they use at border control to basically figure out if you are a criminal if you are trying to leave the country, and normally it will flag you."

The Australian Government is refusing to comment on the case, or say whether it is seeking to extradite Mr Wheeler.

"As a matter of longstanding practice, the Australian Government does not disclose whether it has made, or intends to make, an extradition request to a foreign country until the person is arrested or brought before the court in a foreign country pursuant to that request," a spokesperson for the Attorney-General's Department said.

However, a spokesman for the Czech government has confirmed to the ABC that Australia is yet to formally request Mr Wheeler's extradition.

"[The] Ministry of Justice hasn't been contacted by any authorities in this matter, so we have no information about the case of Mr Wheeler," the spokesman said.

Since leaving Australia, Mr Wheeler claims he is using his skills for good, by helping European government agencies protect themselves from malicious hackers.

He said he was not afraid of being caught or that his past would catch up with him.

"The accusations they have claimed are untrue, and to the best of my knowledge I haven't committed a crime," Mr Wheeler said.

"I would like them to just drop the charges, drop the accusations and face defeat and say, 'Hey, we stuffed up'."