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<!doctype html>
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<meta name="description" content="Katriel Cohn-Gordon - Senior Staff Privacy Engineer at Meta. Research in data access, deletion rights, secure messaging, and privacy infrastructure."/>
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<h1>katriel cohn‑gordon<br /><br />
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<p>I'm a senior staff privacy engineer interested in data access, deletion and secure messaging. I'm an aspiring feminist, trying to be a better ally, and my pronouns are he/him.</p>
<p><span class="new">new</span>I'm giving a talk at PEPR 2026: <a href="https://www.usenix.org/conference/pepr26/presentation/cohn-gordon">Privacy Review for Non-Maniacs</a>.</p>
<p><strong>Research</strong> [<a href="https://scholar.google.co.uk/citations?user=oQ2LLoYAAAAJ&hl=en">publications</a>, <a href="https://ora.ox.ac.uk/objects/uuid:a6da6196-f216-4d57-9035-72903006197c">PhD thesis</a>] I am interested in data access and deletion infrastructure.
I wrote <a href="https://research.facebook.com/publications/delf-safeguarding-deletion-correctness-in-online-social-networks/">a paper on how Meta ensures deletion correctness</a>, and <a href="https://users.encs.concordia.ca/~pcr/paper/Shackleton2023FSE-industry-preprint.pdf">another on how they remove unused code and data</a>. Before that I studied secure messaging and end-to-end encryption.
Me giving a talk on <a href="https://www.youtube.com/watch?v=5_MuxLPhAKo">cookie infrastructure</a>, and <a href="https://www.youtube.com/watch?v=tCKd6xBqyDw">another on group messaging</a> and <a href="https://www.youtube.com/watch?v=NRHwh87TYRs">another on deletion</a>; Totally Accurate <a href="https://www.theregister.co.uk/2018/01/10/facebook_opensources_encrypted_group_chat_tools">Register</a> Coverage.
My Erdos number is four (<a href="https://ia.cr/2016/1013">one</a>, <a href="https://mathscinet.ams.org/mathscinet-getitem?mr=3031548">two</a>, <a href="https://mathscinet.ams.org/mathscinet-getitem?mr=2760159">three</a>, <a href="https://mathscinet.ams.org/mathscinet-getitem?mr=720607">four</a>) if you allow conferences. I <a href="https://www.blackhat.com/review-board.html#CohnGordon">guest-review</a> for Black Hat.</p>
<p><strong>Code</strong> I write code for a living, mostly related to user privacy. I've worked on data access and portability tools, deletion, cookies, task federation, and incident management, among many other projects. I'm currently at <span class="sc">m e t a</span> where I help to make the Privacy Review process more reliable and automated. I'm at home working with legal and policy folks, and translating between code and regulatory requirements.</p>
<p><strong>Contact me</strong> via website@katriel.co.uk.</p>
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