7NEWS Update - Wednesday December 8, 2021: Sydney Harbour cruise party guests on COVID alert; Chinese hack almost threatened Queensland power supply

Contact tracers are scrambling to get in touch with 140 people who attended a Sydney Harbour cruise on Friday night after five people tested positive for COVID, likely the Omicron variant; it's been revealed Chinese hackers came within minutes of shutting down two Queensland power stations in a ransomware attack last month; and laws surrounding cryptocurrencies and 'buy now, pay later' services are set to be tightened under the biggest overhaul of our country's payments system in 25 years. More news across the day on 7NEWS.com.au and 7Plus.  Hosted on Acast. See acast.com/privacy for more information.