Global news & analysis
人 民 网 版 权 所 有 ，未 经 书 面 授 权 禁 止 使 用
，更多细节参见Safew下载
The CBP document acknowledges two sources of location data that it relies on: software development kits (SDKs) and RTB, both methods of location-tracking that EFF has written about before. Apps for weather, navigation, dating, fitness, and “family safety” often request location permissions to enable key features. But once an app has access to your location, it could share it with data brokers directly through SDKs or indirectly (and often without the app developers' knowledge) through RTB. Data brokers can collect location data from SDKs that they pay developers to put in their apps. When relying on RTB, data brokers don’t need any direct relationship with the apps and websites they’re collecting location data from. RTB is facilitated by ad companies that are already plugged into most websites and apps.
（本报记者吴储岐、龚仕建、曹玲娟、付文、田豆豆、王锦涛、耿磊、孟祥夫、朱佩娴、亓玉昆、邱超奕、沈童睿、金歆、赵帅杰、周欢、宋朝军、何昭宇）