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A college is removing its vending machines after a student discovered they were using facial recognition technology
(www.businessinsider.com)
This is a most excellent place for technology news and articles.
A simple motion sensor would have sufficed. A classic example of someone getting excited about a Tech buzzword and cramming it into a product.
Data like facial recognition can be sold, assuming it was storing and/or sending it somewhere.
Motion sensor is all well and good until they start to implement gait recognition and sell that data as well.
It'll soon know you by your sick dance moves.