猿大侠·2025-06-24 03:45Core Viewpoint - The three major Chinese telecom operators plan to fully restart eSIM services in the second half of 2025 after a two-year suspension due to security concerns related to fraud [1][16]. Group 1: Current Status of eSIM Services - China Unicom has resumed eSIM functionality in 25 provinces including Tianjin, Beijing, and Hebei, with no confirmed dates for other cities [2]. - China Mobile is optimizing its system and will gradually open eSIM services nationwide, with specific timelines to be announced [3]. - China Telecom has not completed the upgrade for eSIM services and does not currently support activation, with the upgrade timeline still pending [4]. Group 2: Reasons for Suspension - The suspension of eSIM services was primarily due to concerns over fraud risks associated with the technology [7]. - eSIMs pose greater information security risks compared to traditional SIM cards, as the authentication process can be bypassed, making it easier for fraudsters to exploit the system [8][9]. - There have been instances of eSIMs being converted to physical SIM cards, leading to misuse and significant losses for telecom operators [11][14]. Group 3: Future Developments and Upgrades - Operators are preparing to restart eSIM services, focusing on system optimization to address compatibility issues [17]. - The reintroduction of eSIM services will implement stricter authentication measures, including dual verification through ID and facial recognition, to prevent fraudulent registrations [18]. - The return of eSIM technology is expected to revolutionize communication methods and reshape smartphone designs [19]. Group 4: User Experience and Benefits - eSIMs allow users to switch between different operators and plans without needing to change physical SIM cards, enabling seamless transitions [22]. - The removal of SIM card slots can enhance device design by saving space, improving waterproofing, reducing thickness, or increasing battery capacity [23]. - eSIMs facilitate easier international roaming by allowing users to purchase local data plans online upon arrival, reducing costs associated with traditional roaming [24]. - In IoT applications, eSIMs enable remote management and enhance security, reducing the risk of information theft [25].