Extradition?

Since the alleged criminal acts took place while the suspect was entirely within the Ukraine, I'm not surprised that extradition would be unlikely to happen. But under normal circumstances, such as if the criminal acts had taken place within the United Kingdom or Australia, wouldn't people be prosecuted for hacking into a foreign computer system right in their home countries?

Extradition normally would not even be possible in such cases, but attacking foreign countries is still a crime, because not prosecuting it could lead to a war.

Naturally, there is some awkwardness when the witnesses for the prosecution chiefly live in a foreign country. Perhaps new treaties have been signed which permit extradition in such cases, although this is contrary to the usual international practice as it obtained, say, during the eighteenth and nineteenth centuries, during which each sovereign state was essentially a self-contained legal regime.

Apparently somewhat comparable to the case of Gary McKinnon

......allegedly, an Asperger's Syndrome adult who hacked into United States military computers to get secret UFO evidence. Any part of which statement may be less than strictly a true description of the circumstances. Anyway they're having him (or trying to)... do you suppose this other bloke is reading up on Asperger's currently? It may not matter: fraud is nasty. In my opinion if he's allowed out on the streets pmental-wise then he can be held accountable for his actions.