Not sure if already noted, but…
Reading articles from a couple years ago about low end smartphones sending sensitive data to Chinese tech firm based in Shanghai -Shanghai Adups Technology Co.
> 15 MIN DOWN THE ROAD FROM KING TOWER (Shanghai Op) <
https://www.cyberscoop.com/android-malware-blu-kryptowire-adups-software/
https://www.bloomberg.com/research/stocks/private/snapshot.asp?privcapId=301916296