It's not too long ago that buying something meant handing over cash, or at least a physical card.

But one company is looking to take digital payment a step further, introducing an option that allows you to make a purchase not with your device — but your face.

Paying "with a smile" is a fair way off being commonplace in Australia, and it would be an opt-in service. However, facial recognition becoming more commonplace across in our daily lives. So what's around the corner?

Guests:

- Lauren Perry, responsible technology policy specialist at the University of Technology Sydney

- Kirsten Drysdale, independent journalist and host of The Internet Reviewed

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Technology, Society, Data Privacy