Core Viewpoint - The article discusses the challenges and solutions related to the "second number renewal" service, which aims to provide users with a "clean" mobile number free from previous ownership issues, highlighting the need for better coordination between telecom operators and internet platforms [5][12][14]. Group 1: User Experience and Issues - Many users face difficulties when trying to register new mobile numbers, as these numbers may have been previously active and linked to other accounts, leading to a "digital identity crisis" [3][5]. - The Ministry of Industry and Information Technology (MIIT) reported that by May 2025, the total number of mobile phone users in China is expected to reach 1.807 billion, intensifying the competition for number resources and prompting operators to recycle idle numbers [4]. - The "second number renewal" service, launched in May, allows users to unlink historical internet accounts from their new numbers, covering over 200 mainstream applications [5][12]. Group 2: Operational Challenges - The current "renewal" service primarily involves a one-way request from operators to internet platforms, leading to a lack of transparency and understanding of the processing results for users [7][9]. - Issues such as unstandardized processes and data interoperability hinder the effectiveness of the "second number renewal" service, raising questions about accountability among telecom operators and internet platforms [8][9]. Group 3: Recommendations for Improvement - Telecom operators should establish a rapid response mechanism to enhance service efficiency and transparency, ensuring users can track the progress of their requests [10][11]. - Internet platforms are encouraged to take responsibility for timely responses and efficient processing of unlinking requests, improving communication with telecom operators to streamline the process [11][12]. - Users should be empowered to authorize operators and platforms to handle unlinking matters, creating clear boundaries of responsibility to protect data and ensure compliance [12][13].

Core Viewpoint - The article discusses the upgrade of the "second number" service in China, allowing users to unlink their previous accounts from over 200 popular apps after acquiring a recycled phone number [1][2]. Group 1: Service Upgrade - The "second number" service has been upgraded to support one-click unbinding for over 200 commonly used internet applications, including WeChat, Douyin, Taobao, Meituan, Alipay, and JD.com [1]. - Users can submit unbinding requests, which are typically processed within five days by internet companies [1]. Group 2: Proactive Measures - Several telecom operators have initiated a "proactive renewal" bulk unbinding service to reduce risks associated with "second numbers" [2]. - China Mobile will push notifications to internet application providers about recycled numbers before they are reissued, ensuring unbinding is completed beforehand [2]. - China Unicom will also bulk解除前任机主与互联网账号的历史绑定关系 for numbers ready to be reissued, ensuring that the recycled numbers are "clean" [2]. Group 3: Limitations of the Service - The "second number" service only applies to unbinding accounts linked to previous users; current users must contact the internet application providers directly for their own unbinding needs [3].

Core Viewpoint - The Ministry of Industry and Information Technology (MIIT) has announced measures to address the risks associated with "secondary numbers" in telecommunications, emphasizing the need for users to manage their internet application bindings effectively [1][6][10]. Group 1: Secondary Number Risks - "Secondary numbers" refer to mobile numbers that are reissued by telecom operators after being inactive for about three months, which can lead to potential exposure of personal information if the previous owner did not unlink their accounts [2][3]. - New users of "secondary numbers" have reported being able to access the previous owner's accounts through SMS verification, highlighting the risks of personal data exposure [2][5]. Group 2: Regulatory Measures - The MIIT has established regulations to prevent issues arising from the use of "secondary numbers," ensuring user rights are protected [6][9]. - Telecom operators and internet companies are required to remind users to manage their bindings with internet applications during the processes of opening, transferring, or canceling mobile numbers [7][9]. Group 3: Cross-Industry Collaboration - The MIIT is promoting cross-industry collaboration among telecom operators and internet companies to address user concerns regarding "secondary number" usage [10][11]. - A technical service platform has been created to facilitate the unbinding of internet applications linked to "secondary numbers," currently covering over 200 popular applications [11][13]. Group 4: User Experience Improvement - The "secondary number renewal" service aims to protect user privacy and reduce complaints, thereby enhancing user satisfaction and trust in related companies [14]. - Since the implementation of this service, significant progress has been made in identifying and processing accounts linked to nearly 10 million recycled and reactivated numbers [14].