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100 lines
3.7 KiB
Markdown
100 lines
3.7 KiB
Markdown
---
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layout: mini
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comments: true
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title: "Opting out of WiFi positioning (_nomap)"
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permalink: /n/nomap.html
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redirect_from:
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- /english/2015/11/29/SSID_optout_nomap.html
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- /blog/english/2015/11/29/SSID_optout_nomap.html
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- /r/optout.html
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- /r/_optout.html
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- /r/_nomap.html
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- /r/_optout_nomap.html
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- /nomap.html
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- /_nomap.html
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robots: yesai
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sitemap: true
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excerpt:
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The underscore nomap suffix in SSID indicates your desire to opt-out of Wi-Fi
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positioning systems and, in some cases, mass surveillance.
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---
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# `_nomap`
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_{{ page.excerpt }} This used to be a not so great blog-post and has since
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became a hopefully better note to whoever it may concern_
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`_nomap` in the end of your SSID will exclude your network from Google, Apple,
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WiGLE etc.
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[Wikipedia has a more complete list of supporting services.](https://en.m.wikipedia.org/wiki/Wi-Fi_positioning_system#Public_Wi-Fi_location_databases)
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Microsoft has a separate
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[location services opt-out](https://account.microsoft.com/privacy/location-services-opt-out)
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which uses MAC addresses instead.
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**_Hidden SSID won't work for opt-out in some of those services. Refer to
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[n/hiddenssid](hiddenssid.html)._**
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<p class="centered">
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<a
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class="centered"
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href="https://openwireless.org">
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<img
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width="150"
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height="196"
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src="https://github.com/Mikaela/mikaela.github.io/raw/lfs-media/eff.org/openwireless.org.png"
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alt="I Support Open Wi-fi. openwireless.org"
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/></a>
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</p>
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<!-- editorconfig-checker-disable -->
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<!-- prettier-ignore-start -->
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<!-- START doctoc generated TOC please keep comment here to allow auto update -->
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<!-- DON'T EDIT THIS SECTION, INSTEAD RE-RUN doctoc TO UPDATE -->
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<em lang="fi">Automaattinen sisällysluettelo</em> / <em lang="en">Automatically generated Table of Contents</em>
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- [Why?](#why)
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- [`_optout`](#_optout)
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<!-- END doctoc generated TOC please keep comment here to allow auto update -->
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<!-- prettier-ignore-end -->
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<!-- editorconfig-checker-enable -->
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## Why?
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**For privacy.** WiGLE.net may point your home directly just by entering the
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SSID and who knows how many similar services there are. While I have been
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thinking of this since 2015, there is at least one case where this has been used
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in 2018:
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- [Christian Haschek: The curious case of the Raspberry Pi in the network closet](https://blog.haschek.at/2018/the-curious-case-of-the-RasPi-in-our-network.html)
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In the second quarter of 2024, researchers found that Apple allows tracking
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Wi-Fi networks that hadn't opted out, including Starlink terminals in Ukraine
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and Gaza.
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- [KrebsOnSecurity: Why Your Wi-Fi Router Doubles as an Apple AirTag](https://krebsonsecurity.com/2024/05/why-your-wi-fi-router-doubles-as-an-apple-airtag/)
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**For practical reasons.** If you have ever _moved_ taking your WiFi access
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point with you, you may have noticed Google/Apple Maps and all locating you to
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your _old home_, which may be annoying with route planner apps and similar.
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To fix this, you can either append `_nomap` to your SSID to remove it from the
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positioning process, try going outside with maps open and hoping it will update
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your location or wait patiently for the location services to realize your move.
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Another occassionally happening event is the _WiFi AP moving_ by itself.
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Location services may blocklist moving access points without static location, or
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you may find that on the move you always locate to a home point, while it would
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be more useful to just `_nomap` so other location sources would be used
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immediately.
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## `_optout`
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Legacy from 2015-2016. Used to be part of Microsoft WiFi Sense that shared WiFi
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networks and passwords to all contacts.
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- [KrebsOnSecurity: Microsoft Disables Wi-Fi Sense on Windows 10](https://krebsonsecurity.com/2016/05/microsoft-disables-wi-fi-sense-on-windows-10/)
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