What is the SDK mentioned at the 315 party? What software has SDK plug-ins?

In the world of mobile apps, what are the so-called laws and regulations? Third-party applications or services? It's a tangible existence. But in fact, whether it is the news push you receive every day, the promotion advertisement or even the SMS verification code, it may come from a third party. These third-party toolkits integrated in the App are called SDK. SDK is? Software development kit? The software development toolkit is generally a collection of development tools used by some software engineers to build application software for specific software packages, software frameworks, hardware platforms, operating systems, etc. Simply put, it is a software toolkit to realize product functions through third-party service providers. Usually, SDK will provide a collection of professional services by professional companies, such as mobile payment technology, voice recognition technology and our company's one-click login technology. Developers don't need to develop every function of the product, and they can spend less time to realize the function of the product by using the appropriate SDK. Shanghai Krypton Information Technology and Beijing Zhaocai Want Want Information Technology secretly steal users' privacy, including IMEI, IMSI, operator information, phone number, SMS record, address book, application installation list and sensor information, without users' knowledge, by implanting SDK plug-ins (a kind of software package) in more than 5 mobile phone apps. What's worse, after these private information are read, the two companies will quietly transfer the data to the designated server for storage. Once the user has the verification code of online transactions, it is very likely to cause serious economic losses. In addition to obtaining private information such as SMS verification code, you may not know that if these SDK plug-ins can read the sensor information of mobile phone users, it means that it may? Eavesdropping? Everybody. You can check whether there are more than 5 exposed apps installed in your mobile phone, but if there are any, it is recommended to consider uninstalling them.