@@ -177,6 +177,7 @@ <h2 class="no-num no-toc no-ref" id="contents">Table of Contents</h2>
177177 < li > < a href ="#changes-2012 "> < span class ="secno "> </ span > < span class ="content "> Changes Since the Media Queries Level 3</ span > </ a >
178178 </ ol >
179179 < li > < a href ="#acknowledgments "> < span class ="secno "> </ span > < span class ="content "> Acknowledgments</ span > </ a >
180+ < li > < a href ="#priv-sec "> < span class ="secno "> 12</ span > < span class ="content "> Privacy and Security Considerations</ span > </ a >
180181 < li >
181182 < a href ="#conformance "> < span class ="secno "> </ span > < span class ="content "> Conformance</ span > </ a >
182183 < ol class ="toc ">
@@ -2199,6 +2200,18 @@ <h2 class="no-num heading settled" id="acknowledgments"><span class="content"> A
21992200 Steven Pemberton,
22002201 and Susan Lesch
22012202improved this specification.</ p >
2203+ < h2 class ="heading settled " data-level ="12 " id ="priv-sec "> < span class ="secno "> 12. </ span > < span class ="content "> Privacy and Security Considerations</ span > < a class ="self-link " href ="#priv-sec "> </ a > </ h2 >
2204+ < p > This specification introduces no new security considerations.</ p >
2205+ < p > Media Queries enable CSS to query various aspects of the page’s environment,
2206+ including things that can be difficult or impossible to find via scripting.
2207+ This is potentially a privacy hazard,
2208+ allowing enhanced fingerprinting of a user,
2209+ but the risk is generally low.
2210+ At minimum, the same information should be < em > inferrable</ em > via scripting by examining the User Agent string.
2211+ However, UA string spoofing does not affect Media Queries,
2212+ making this a somewhat more robust detection technique.</ p >
2213+ < p > That said, the information granted by Media Queries is relatively coarse,
2214+ and does not contribute much entropy in this regard.</ p >
22022215 </ main >
22032216 < h2 class ="no-ref no-num heading settled " id ="conformance "> < span class ="content "> Conformance</ span > < a class ="self-link " href ="#conformance "> </ a > </ h2 >
22042217 < h3 class ="heading settled " id ="document-conventions "> < span class ="content "> Document conventions</ span > < a class ="self-link " href ="#document-conventions "> </ a > </ h3 >
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