Cryptocurrency devotees are riding the recent crypto wave fuelled by Donald Trump's re-election in the US. But Australian industry figures says businesses and consumers are being let down by a lack of regulation.

Tender documents reveal the Australian Submarine Agency awarded the lucrative AUKUS contract to the local subsidiary of McKinsey & Company last month.

Household clean tech set-ups like solar and batteries can mean huge savings. But what's sitting behind the meter may become the most valuable asset as a new energy market emerges.

Australians spent $4.4 billion on video gaming last year, but finding information on how best to spend their money is challenging.

The federal budget is sliding deeper into the red, Treasurer Jim Chalmers has confirmed, with next month's mid-year budget update to show a larger deficit than had been expected in May.