These codes seem random, but they are actually related to the characteristics of hardware devices.
Mobile advertisers and game network operators usually need to identify players and users through UDID and track user activities.
Extended data:
Substitute software
According to foreign media reports, since developers were forbidden to use unique device identifiers (UDIDs) to track users last summer, Apple said for the first time that it plans to release new application tracking tools for developers.
This looks like Apple's first major attempt to find a balance between meeting the needs of developers to legally use data and protecting users' privacy.
How Apple's new application tracking tool will track users' application usage is unknown, but obviously it will not be tied to specific devices.
In any case, whether users can be tracked is of great significance to application developers and advertising networks. Since Apple continues to control all aspects of its application ecosystem, it should assume the responsibility of solving this problem.
Lars Albright, former head of Apple's iAd mobile advertising department and now CEO of mobile marketing company SessionM (Lars).
Albright) said: "Everyone is expecting Apple to take action in this regard.
There are many different views in the industry, which makes us very confused. We need to reduce chaos. The industry hopes that Apple can strike a balance and satisfy all parties, but the result is likely that Apple may restrict developers from obtaining more user data than before, which may anger advertisers.
As previously reported, due to the lack of alternative products, it is a big problem for Apple to refuse developers to use the unique device identifier of iOS devices.
With the World Developers Conference (WWDC) of Apple 20 12 to be held next week, the problem of substitute products with unique device identifiers will be closely concerned.
Baidu encyclopedia -udid