Core Insights - The investigation reveals that despite e-commerce platforms implementing privacy measures, there are numerous intermediaries offering "decryption" services for personal information at a low cost, indicating a significant gap in personal data protection [1] Group 1: Causes of Personal Information Leakage - The primary reason for personal information leakage is the existence of a substantial marketing profit chain that relies on personal data, with underground markets for personal information trading remaining active [2] - Weak regulatory oversight in the multiple stages of personal information handling during online shopping contributes to the leakage, as data may have been exposed before encryption measures were implemented [2] - Incomplete legislation and management loopholes in internet platform real-name authentication are major factors leading to ongoing personal information leaks [2] Group 2: Recommendations for Improvement - It is essential to identify the channels through which personal information is leaked, whether through technical means or internal breaches, and to enhance regulatory oversight accordingly [3] - Regulatory bodies should increase compliance monitoring of personal information usage by logistics and courier companies, which typically do not need to retain extensive user data [3] - There should be an increase in administrative penalties for violations of personal information rights, including warnings, detention, or fines, and a clear definition of civil liabilities for offenders to enhance the cost of violations [3]