It all started after a fan, identified as Navaldeep Singh, tweeted pictures and videos of Rohit Sharma, Rishabh Pant, Navdeep Saini and Shubman Gill having a meal at a restaurant.
India vs Australia: Visiting team checks into new hotel on eve of first ODI after 14-day 'soft quarantine'
The visiting players and support staff were staying at Pullman in Sydney Olympic Park during their "soft quarantine" where they only met at the ground during training.
England and West Indies skippers Eoin Morgan and Jason Holder, who had also spent time in tight restrictions during the Test series in UK ahead of the IPL, too have warned that living in bubbles can led to "extreme burnouts".
Star Australian cricketers including Smith have been in a bio-bubble since August when they toured England before moving to the protected environment of the IPL in September.
Both Morgan and Holder have spent time in bio-secure bubbles over the past few months, including the one put in place by the England and Wales Cricket Board (ECB) to manage the home summer season.
The arrangements raise the prospect of long periods isolated in hotel rooms, and Finch said Cricket Australia wanted to ensure the players' mental wellbeing.
The PCB said that Hafeez went to a golf course, which is adjacent to the team hotel and part of the bio-secure bubble. He was photographed with a member of the public and posted the picture on his social media account.