It has been found that Safari history fingerprints have been leaked by Apple to China. There are rumors that Apple seems to be using Tencent as one of it Safe Browsing providers. Tencent is Chinese internet giant. Read more at techbeacon.com
Apple has been seen to send a few users' IP addresses to Tencent without any users' knowledge. IP addresses is important if you wish to check any user location and can be shared further.
Through the IP address, you can also come to now regarding the owner of the device.