github.com/sagernet/sing-box@v1.9.0-rc.20/docs/clients/privacy.md (about)

     1  ---
     2  icon: material/security
     3  ---
     4  
     5  # Privacy policy
     6  
     7  sing-box and official graphics clients do not collect or share personal data,
     8  and the data generated by the software is always on your device.
     9  
    10  ## Android
    11  
    12  If your configuration contains `wifi_ssid` or `wifi_bssid` routing rules,
    13  sing-box uses the location permission in the background
    14  to get information about the connected Wi-Fi network to make them work.