The rise of affordable smart glasses is sparking global concern among privacy advocates. (Aap/AAP PHOTOS)The rise of affordable smart glasses is sparking global concern among privacy advocates. (Aap/AAP PHOTOS) Credit: AAPThe low cost of smart glasses could lead to an increase in privacy concerns and the harassment of women, the attorney-general warns. A study of videos recorded by smart glasses found about 60 per cent uploaded to Instagram showed behaviour classified as potential harassment. Dr Kaviani said clear regulations were needed on the use of smart glasses before the technology became more embedded in daily life.