Data protection part two The idea that data, if wrongly used, may cause tremendous damage to society, even to one's life has driven people to wonder what stands behind. For one reason, managing one's own data is time-consuming and complex, and most people are reluctant to spend time and effort on it, partly because of a misunderstanding of what is at stake. It is only when "data" is understood to mean "people " that individuals will demand accountability from those who seek to know them. For another, tech companies, especially those who want to use the data in pursuit of global dominance in the business of AI, have an incentive to collect as much data as possible and support lax data-protection laws. But step back and look at the bigger picture. It is only sound data-protection systems that make customers rest assured to upload and share their data, which forms a positive feedback of data generating. People tend to sweep complex social problems, brought by the rapid development of technologies, under the carpet. But data security is the one that can not be avoided. Privacy rules, data-protection regulation and new laws surrounding the use of algorithms are all crucial in protecting the rights of individuals. But the first step towards ensuring data privacy is to understand the importance of what is behind data. That is the priceless trust.