My advice - not either of my employers’ advice - to ANZ orgs regarding to US/Israel/Iran war cyber attacks: seeing a ton of activity. Some targeted, lots opportunistic. If you’re not a geopolitical target, increase threat posture. It’s too chaotic to fully predict and models can change at any time.
There is only a certain level of chaos and opportunistic disorder that even very good intelligence analysts can predict right now. Anyone could be hit by an attack of opportunity, a mistake, or be a supply vector. Australia’s geopolitical involvement could rapidly change. Raise your defences.