“HOW DO I SET UP MY WI-FI NETWORK TO EXCLUDE ANDROID DEVICES? If an Android device (phone or tablet) has ever logged on to a particular Wi-Fi network, then Google probably knows the Wi-Fi password. Considering how many Android devices there are, it is likely that Google can access most Wi-Fi passwords worldwide.”
Why does anyone care about this? If the government, or anyone else powerful, is out to get me bad enough, they’ll get tp my internet-connected devices by hook or by crook, and probably burglarize my house to get my other records too. If you’re up to something important enough to need total secrecy, don’t put it on a network connected computer, or on any computer or in any safe without a really good code.