Earlier quoted context omitted.
iCloud in China has been hosted by a local licencee for a while. People who care about privacy are at least aware that the backend is no longer secure. While we are on the topic, Windows 10 binary for Chinese government contracts are compiled by a third party company based in China so certain features could be added/removed at code level without directly giving away the source code. It may only be a matter of time be…
My brain's being a bit pedantic/dense about wording, so I want to clarify - are you saying that Windows 10 builds destined for Chinese governmental use are shipped to China in source form?
MS have, for a long time, allowed major customers to audit Windows source code on site but they are still forbidden from making copies. The whole setup is meant to avoid shipping source code directly.