{"id":1774,"date":"2021-08-08T01:42:30","date_gmt":"2021-08-08T08:42:30","guid":{"rendered":"https:\/\/ant.isi.edu\/blog\/?p=1774"},"modified":"2021-08-08T01:42:30","modified_gmt":"2021-08-08T08:42:30","slug":"new-paper-and-talk-institutional-privacy-risks-in-sharing-dns-data-at-applied-networking-research-workshop-2021","status":"publish","type":"post","link":"https:\/\/ant.isi.edu\/blog\/?p=1774","title":{"rendered":"New paper and talk \u201cInstitutional Privacy Risks in Sharing DNS Data\u201d at Applied Networking Research Workshop 2021"},"content":{"rendered":"\n<p>Basileal Imana presented the paper \u201c<a href=\"https:\/\/www.isi.edu\/~johnh\/PAPERS\/Imana21c.pdf\">Institutional Privacy Risks in Sharing DNS Data<\/a>\u201d by Basileal Imana, Aleksandra Korolova and John Heidemann at <a href=\"https:\/\/irtf.org\/anrw\/2021\/\">Applied Networking Research Workshop<\/a> held virtually from July 26-28th, 2021.<\/p>\n\n\n\n<p>From the abstract:<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\"><p>We document institutional privacy as a new risk<br \/>posed by DNS data collected at authoritative servers, even<br \/>after caching and aggregation by DNS recursives. We are the<br \/>first to demonstrate this risk by looking at leaks of e-mail<br \/>exchanges which show communications patterns, and leaks<br \/>from accessing sensitive websites, both of which can harm an<br \/>institution\u2019s public image. We define a methodology to identify queries from institutions and identify leaks. We show the<br \/>current practices of prefix-preserving anonymization of IP<br \/>addresses and aggregation above the recursive are not sufficient to protect institutional privacy, suggesting the need for<br \/>novel approaches.<\/p><p><\/p><\/blockquote>\n\n\n\n<figure class=\"wp-block-image size-large is-resized\"><a href=\"https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2021\/07\/0001.jpg\"><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2021\/07\/0001-1024x829.jpg\" alt=\"\" class=\"wp-image-1776\" width=\"329\" height=\"266\" srcset=\"https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2021\/07\/0001-1024x829.jpg 1024w, https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2021\/07\/0001-300x243.jpg 300w, https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2021\/07\/0001-768x622.jpg 768w, https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2021\/07\/0001-1200x972.jpg 1200w, https:\/\/ant.isi.edu\/blog\/wp-content\/uploads\/2021\/07\/0001.jpg 1505w\" sizes=\"auto, (max-width: 329px) 100vw, 329px\" \/><\/a><figcaption>Number of MX and DNSBL queries in a week-long root DNS data that can potentially leak email-related activity<\/figcaption><\/figure>\n\n\n\n<p>The data from this paper is available upon request, please see our&nbsp;<a rel=\"noreferrer noopener\" href=\"https:\/\/ant.isi.edu\/datasets\/dnsprivacy\/\" target=\"_blank\">project page<\/a>.<\/p>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Basileal Imana presented the paper \u201cInstitutional Privacy Risks in Sharing DNS Data\u201d by Basileal Imana, Aleksandra Korolova and John Heidemann at Applied Networking Research Workshop held virtually from July 26-28th, 2021. From the abstract: We document institutional privacy as a new riskposed by DNS data collected at authoritative servers, evenafter caching and aggregation by DNS [&hellip;]<\/p>\n","protected":false},"author":636,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[289,284,282],"tags":[328,63,58,5,93,142,57],"class_list":["post-1774","post","type-post","status-publish","format-standard","hentry","category-dns","category-papers-publications","category-publications","tag-anrw","tag-dns","tag-isi","tag-papers","tag-privacy","tag-researchroot","tag-usc"],"_links":{"self":[{"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1774","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/users\/636"}],"replies":[{"embeddable":true,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=1774"}],"version-history":[{"count":4,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1774\/revisions"}],"predecessor-version":[{"id":1780,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=\/wp\/v2\/posts\/1774\/revisions\/1780"}],"wp:attachment":[{"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=1774"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=1774"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ant.isi.edu\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=1774"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}