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The leakage of personal data is worrying, but companies, schools, hotels, and social networking sites that are responsible for keeping personal information at this stage are often blameless.

       US media disclosed on the evening of the 17th that British “Cambridge Analysis”, a company that was deeply involved in the abuse of personal privacy data, originally planned to launch a private data storage service and sell it via cryptocurrency through blockchain technology. The concept of cryptographic monetization of personal information is actually not new. The key to this vision is the autonomy of everyone on personal information. Some industry sources believe that blockchain technology may bring about a "revolutionary" in personal data protection.

Live hotel send cipher text

No need to show ID

In the era of big data, personal data is considered as precious as gold. The leakage of personal data is worrying, but most people cannot cut off the connection with the Internet because they fear that data will be collected. At this stage, companies, schools, hotels, and social networking sites that are responsible for keeping personal information are often blamed. Experts believe that blockchain technology as a "middleware" with encryption, trust, point-to-point, difficult to tamper with, is expected to solve this problem.

With the advent of blockchain technology, the right to control personal data has been transferred from Internet companies to users themselves, making it possible for everyone to control their personal data. Through it, the user's personal data can be associated with a personal digital ID card. The user can choose whether the digital ID card is anonymous, aliased or publicly accessible, and can access the blockchain application platform from any device anytime, anywhere to control their Internet personal data.

For example, the information of a person's ID number in the blockchain may be converted into a string of ciphertext, and the face image information is also encrypted. When he checks in at the hotel, he only needs to send the ID number ciphertext to the hotel through the app. The hotel compares the information with the encrypted data on the blockchain application and does not need to know any of his real information, but as long as the encrypted data ratio Matching the results guarantees the check-in.

Sell Your Shopping Data

Personal information can still be kept confidential

At the same time, big data and artificial intelligence development require a large amount of user data resources. Users can selectively sell personal data as cryptocurrencies and receive certain returns. For example, if the e-commerce needs user data to develop a new application, users can choose to sell their own shopping history data, but their own address accounts and other information can still be kept confidential.

In the area of gene sequencing, blockchain applications have begun to challenge traditional gene-sequencing companies to sell their personal data.

In recent years, gene sequencing services for ordinary people are highly sought after. Consumers can get in-depth analysis of family genetic information and genetic health risks through payment. Many similar biotech companies are earning service revenue from consumers while reselling consumer data “makes double money”.

Blockchain replaces middlemen

Own data own

In February of this year, George Church, a geneticist at Harvard University in the United States, created the “Nebula Gene” company, hoping to break this pattern through blockchain technology. The company plans to complete genome-wide sequencing at a price of less than US$1,000. The cost is borne by customers. In return, customers have intuitive autonomy to understand their own genetic information and their disease risk, but they also have autonomy over sequencing data. Genetic information will be secured through blockchain technology, and at the same time, it will be encrypted and monetized, and transactions such as storage and sale will be conducted according to the wishes of customers.

The company plans to launch a "Star Coin" as a transaction medium, where customers can exchange their genetic information for "Nebula coins" or use "Nebula coins" to pay for their own sequencing costs, and pharmaceutical companies can purchase them in traditional currencies." "Star coin" to obtain ordinary people's genetic information data, the entire transaction process is completed through the blockchain platform, encrypted transparent and safe.

According to the MIT Technical Review, the use of blockchain as a medium to complete the preservation and sharing of consumer genetic information will fundamentally eliminate the behavior of biotechnology companies and other companies as "intermediaries" to make huge profits. Can really master their own data.