Location based services like GPS have become very popular these days. The very problem with them is, they consume a lot of charge from the battery of the device. Apart from this,according to Google, " By looking for a wireless access point near the user's phone, location providers can return the approximate location you need." This method is far better than GPS, since it's faster, works indoors and saves battery life.
Google said that, " We’re introducing a method that lets you opt out of having your wireless access point included in the Google Location Server. To opt out, visit your access point’s settings and change the wireless network name (or SSID) so that it ends with “_nomap.” For example, if your SSID is“Network,” you‘d need to change it to “Network_nomap.”
Follow this link, to start with.
Google said that, " We’re introducing a method that lets you opt out of having your wireless access point included in the Google Location Server. To opt out, visit your access point’s settings and change the wireless network name (or SSID) so that it ends with “_nomap.” For example, if your SSID is“Network,” you‘d need to change it to “Network_nomap.”
Follow this link, to start with.
Google also told that, "Finally, because other location providers will also be able to observe these opt-outs, we hope that over time the “_nomap” string will be adopted universally. This would help benefit all users by providing everyone with a unified opt-out process regardless of location provider."
The point here is that these access point signals don't identify people but just identify their devices.
Source: Google
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