旧手机不能随便卖了？史上最严新规出台

Core Viewpoint - The introduction of a new national standard in China for data security and electronic product information clearance aims to enhance the safety of second-hand electronic device transactions, addressing concerns over data privacy and security [8][10][20]. Group 1: New National Standard - A new national standard titled "Data Security Technology Electronic Product Information Clearance Technical Requirements" will be implemented on January 1, 2027, mandating "true clearance" of data rather than "fake deletion" [8][10]. - This standard is mandatory for manufacturers and recycling businesses, making it one of the strictest regulations to date, covering a wide range of electronic products including smartphones, tablets, laptops, and smartwatches [10][20]. Group 2: Data Clearance Methods - The standard specifies two main data clearance methods: digital overwriting and block erasure. Digital overwriting involves repeatedly covering existing data, while block erasure entails completely removing data from a storage block [12][14]. - Block erasure is more efficient for semiconductor media, as it clears entire data blocks at once, making data recovery nearly impossible [14]. Group 3: Responsibilities of Manufacturers and Recyclers - Manufacturers are required to integrate a "data destruction" feature in new devices or provide third-party tools for data clearance, ensuring users are informed about the clearance process and its implications [15]. - Recycling businesses must adhere to strict guidelines, including obtaining user consent before accessing any data, using approved clearance methods, and maintaining records of clearance operations for at least three years [17][22]. Group 4: Market Context and User Sentiment - Over 6 billion idle mobile phones exist in China, with only 10% entering the second-hand market, highlighting the need for a standardized approach to data security in device recycling [20]. - User feedback indicates a sense of relief regarding the new regulations, although there are concerns about the effective implementation of these standards [22].