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Opinion | Personal data and privacy: social media users must realise there’s always a price to pay for ‘free’ apps

  • While most social media platforms are free, users needs to recognise they are almost always giving up their personal data in exchange for using the service
  • By way of comparison, the government’s ‘Leave Home Safe’ app has fewer requirements and is much safer for users’ personal data

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A man and woman use their laptops and a mobile phone as they sit in a park next to Victoria Harbour in Hong Kong in October 2017. Photo: AFP
The use of social media, including instant messaging apps, is certainly part of everyday life for people in Hong Kong. Nonetheless, such use also carries inherent, non-negligible privacy risks in relation to their personal data.
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According to a survey conducted by my office last year, 77 per cent of respondents had an account with a social media platform and 48 per cent used that platform on a daily basis. In addition, 93 per cent of respondents used smartphones, of which 98 per cent had installed instant messaging apps.

It is interesting to note that, among those who had installed instant messaging apps, 77 per cent were aware that those apps had access to the contact information on their phones. Nevertheless, 35 per cent of the respondents considered such access an invasion of their privacy and 34 per cent considered it a serious invasion.

Although most social media platforms provide their services for free, it is important for users to recognise that, almost invariably, they are giving up or sharing their personal data to the relevant platforms or apps in return for the use of their services. This data includes information about their online behaviour, browsing habits and so on.
Personal data has been monetised upon registration or through user activities, and this data is collected, used and often shared by service providers with others for various purposes, including targeted advertising. Platforms’ ability to track someone online might be considered creepy.
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However, businesses know exactly where to place their adverts through the data they collect from users via their digital footprints.

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