As we all know, Chinese mainland mobile phones are currently universal SIM card, the card can only be used in China, go abroad can not access the Internet, need to replace with local network equipment, and most of the foreign use is eSIM, the card can also be used online abroad, many netizens have expressed doubts about this, more netizens said that China's card has been monopolized by the three major operators! Is this really the case?
In fact, it is difficult to implement eSIM cards in China, mainly because of security issues.
In fact, it is difficult to implement eSIM cards in China, mainly because of security issues. eSIM technology needs to be configured remotely over the network, which brings security implications. Compared with the current SIM card in China, the eSIM cannot be replaced at will, and if it is attacked or leaked, it will pose a threat to the security of the user's personal information.
1. The difference between eSIM and SIM card
An eSIM (Embedded Universal Integrated Circuit Card) is an embedded universal integrated card, which is an electronic chip that is pre-installed in network equipment during the manufacturing process, which can realize remote configuration and replace the functions of traditional SIM cards. eSIM technology enables devices to connect to a cellular network without inserting a physical SIM card, enabling remote subscriptions and changes to network services. This technology makes the device more flexible, secure, and cost-effective in terms of mobile network connectivity.
SIM card is the abbreviation of Subscriber Identity Module, which means Subscriber Identification Card. It is a chip embedded in a smart card that contains information such as the user's identity, phone number, text message, internet settings, etc. The SIM card is an IC card held by the mobile user of the GSM system and can be considered as the key to the GSM system. Only by inserting a SIM card can the mobile phone be connected to the GSM network to achieve functions such as making calls, sending text messages, and surfing the Internet. With the development of technology, the functions of SIM cards are also increasing, such as supporting high-speed networks such as LTE and 5G, as well as security chips for mobile payment, access control and other applications.
2. The possible harm caused by the implementation of eSIM in China
1. Operators have absolute management rights over card data, but with the promotion of eSIM, the remote management platform may also need to be connected with the management platforms of other manufacturers (such as terminal enterprises and virtual operation enterprises), which will increase the possibility of eSIM files being stolen and cause security threats such as identity theft and tampering and eavesdropping.
2. Air port transmission increases the risk of leakage of sensitive information such as eSIM data files.
3. eSIM files are susceptible to attacks such as illegal access and malicious tampering on the terminal.
From the actual situation, there is no need to use the "dangerous" eSIM without going abroad, and from the perspective of the eSIM itself, it has security risks such as information leakage, identity theft, and tampering and eavesdropping. Information leakage, eavesdropping on chats, privacy violations, etc., can cause monetary losses at least and endanger national interests and security at worst.
1. When filling in information on public website platforms, avoid using real names or spellings, do not fill in online forms unless necessary, use screenshots of contact information, and try to use email addresses instead of mobile phone numbers.
2. When installing the software, be sure to carefully read the permission acquisition application involving personal privacy content (such as contacts, text messages, etc.), and do not give unnecessary permissions. Also, bat encryption software can be used.
Bat encrypted chat software, using end-to-end encryption technology for transmission, all data is encrypted through the private key generated by the user before sending, no third party, including developers, can unlock this data. (That is to say, except for the two sides of the chat, no one or other tools can see the chat history, including the app developer~)
The bat will be burned immediately after reading, and the system will automatically destroy the chat history, and there is no trace locally, which can effectively protect your chat privacy from being stolen and tampered with~
3. Do not disclose your own and your family's private information on social media.
4. Cancel or unbind accounts that have not been used for a long time in a timely manner.
5. Do not click to browse unknown websites, do not download applications from unknown sources, and do not scan unfamiliar QR codes.
6. Turn off the WiFi function of your mobile phone in time, and don't use free WiFi in public places.
7. Do not participate in small surveys, street questionnaires, lucky draws, free gifts, informal card applications and other activities, and do not fill in personal information at will.
8. Once personal information security is leaked, complaints and reports may be made to the internet management departments and relevant institutions.