More privacy concerns for supermarket customers.  

It's been revealed that Woolworths will collect personal data like images, audio recordings, and license plate numbers when people sign up to their Everyday Reward cards. 

Privacy Commissioner Michael Webster says businesses need to be transparent with what they're collecting from people and what's done with that data once it's been collected.  

He says they need to make sure it isn't at risk of cyber-attacks and isn't accessible to those who shouldn't see it.  

It follows an earlier controversy with competitor Foodstuffs trialling facial recognition software in North Island stores. 

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