<?xml version="1.0" encoding="UTF-8"?><rss xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:content="http://purl.org/rss/1.0/modules/content/" xmlns:atom="http://www.w3.org/2005/Atom" version="2.0"><channel><title><![CDATA[Two thousand year old #opsec advice:]]></title><description><![CDATA[<p>Two thousand year old <a href="https://infosec.exchange/tags/opsec" rel="tag">#<span>opsec</span></a> advice: </p><p>Hoping that others will not hear is not the same as not speaking; hoping others won’t find out is not the same as not doing.</p><p>(from the Book of Han, a history book authored by a brother-sister pair) <br /><a href="https://infosec.exchange/tags/classicalchinese" rel="tag">#<span>classicalchinese</span></a> <a href="https://infosec.exchange/tags/fountainpen" rel="tag">#<span>fountainpen</span></a></p>

<div class="row mt-3"><div class="col-12 mt-3"><img class="img-thumbnail" src="https://media.infosec.exchange/infosec.exchange/media_attachments/files/116/458/694/797/366/265/original/4a71018fdb13a0fa.jpeg" alt="Link Preview Image" /></div></div>]]></description><link>https://board.circlewithadot.net/topic/6c297390-e009-4787-b62c-ce5972f09376/two-thousand-year-old-opsec-advice</link><generator>RSS for Node</generator><lastBuildDate>Fri, 15 May 2026 04:31:56 GMT</lastBuildDate><atom:link href="https://board.circlewithadot.net/topic/6c297390-e009-4787-b62c-ce5972f09376.rss" rel="self" type="application/rss+xml"/><pubDate>Fri, 24 Apr 2026 08:17:42 GMT</pubDate><ttl>60</ttl><item><title><![CDATA[Reply to Two thousand year old #opsec advice: on Fri, 24 Apr 2026 08:34:29 GMT]]></title><description><![CDATA[<p><span><a href="/user/0xabad1dea%40infosec.exchange">@<span>0xabad1dea</span></a></span> I copied you</p>

<div class="row mt-3"><div class="col-12 mt-3"><img class="img-thumbnail" src="https://cdn.masto.host/mastodongamedevplace/media_attachments/files/116/458/725/708/343/299/original/9bf4055723e27634.jpg" alt="Link Preview Image" /></div></div>]]></description><link>https://board.circlewithadot.net/post/https://mastodon.gamedev.place/users/gkrnours/statuses/116458761090925706</link><guid isPermaLink="true">https://board.circlewithadot.net/post/https://mastodon.gamedev.place/users/gkrnours/statuses/116458761090925706</guid><dc:creator><![CDATA[gkrnours@mastodon.gamedev.place]]></dc:creator><pubDate>Fri, 24 Apr 2026 08:34:29 GMT</pubDate></item><item><title><![CDATA[Reply to Two thousand year old #opsec advice: on Fri, 24 Apr 2026 08:34:17 GMT]]></title><description><![CDATA[<p><a href="/user/0xabad1dea%40infosec.exchange">@0xabad1dea@infosec.exchange</a> </p><blockquote>The king himself rode a horse and shot arrows at a deer. However, the horse stumbled, causing him to fall off, but he was not injured. Looking around, he said, "Do not let the historians know about this."</blockquote><p></p>]]></description><link>https://board.circlewithadot.net/post/https://blahaj.zone/notes/alg7xoeznb9x00uv</link><guid isPermaLink="true">https://board.circlewithadot.net/post/https://blahaj.zone/notes/alg7xoeznb9x00uv</guid><dc:creator><![CDATA[piku@blahaj.zone]]></dc:creator><pubDate>Fri, 24 Apr 2026 08:34:17 GMT</pubDate></item><item><title><![CDATA[Reply to Two thousand year old #opsec advice: on Fri, 24 Apr 2026 08:24:02 GMT]]></title><description><![CDATA[<p><span><a href="/user/illuminatus%40mstdn.social">@<span>Illuminatus</span></a></span> click through the embed if you can’t see it.</p>]]></description><link>https://board.circlewithadot.net/post/https://infosec.exchange/users/0xabad1dea/statuses/116458719953785723</link><guid isPermaLink="true">https://board.circlewithadot.net/post/https://infosec.exchange/users/0xabad1dea/statuses/116458719953785723</guid><dc:creator><![CDATA[0xabad1dea@infosec.exchange]]></dc:creator><pubDate>Fri, 24 Apr 2026 08:24:02 GMT</pubDate></item><item><title><![CDATA[Reply to Two thousand year old #opsec advice: on Fri, 24 Apr 2026 08:23:24 GMT]]></title><description><![CDATA[<p><span><a href="/user/0xabad1dea%40infosec.exchange">@<span>0xabad1dea</span></a></span> <span><a href="/user/catsalad%40infosec.exchange">@<span>catsalad</span></a></span> Which one, if I may inquire? (Edit: you replied before me) I use the KWZ Sheen Machine and Sheen Machine 2, and I recently got some "chromatography" inks from Ostrich, and I love them.</p>]]></description><link>https://board.circlewithadot.net/post/https://mstdn.social/users/Illuminatus/statuses/116458717496105606</link><guid isPermaLink="true">https://board.circlewithadot.net/post/https://mstdn.social/users/Illuminatus/statuses/116458717496105606</guid><dc:creator><![CDATA[illuminatus@mstdn.social]]></dc:creator><pubDate>Fri, 24 Apr 2026 08:23:24 GMT</pubDate></item><item><title><![CDATA[Reply to Two thousand year old #opsec advice: on Fri, 24 Apr 2026 08:21:36 GMT]]></title><description><![CDATA[<p><span><a href="/user/catsalad%40infosec.exchange">@<span>catsalad</span></a></span> fountain pen filled with bottle ink that gives that effect <img src="https://board.circlewithadot.net/assets/plugins/nodebb-plugin-emoji/emoji/android/1f642.png?v=28325c671da" class="not-responsive emoji emoji-android emoji--slightly_smiling_face" style="height:23px;width:auto;vertical-align:middle" title=":)" alt="🙂" /> they’re called “sheening inks”</p><p>edit: this is the same ink in strong sunlight at an angle <a href="https://infosec.exchange/@0xabad1dea/116447336389536456" rel="nofollow noopener"><span>https://</span><span>infosec.exchange/@0xabad1dea/1</span><span>16447336389536456</span></a></p>]]></description><link>https://board.circlewithadot.net/post/https://infosec.exchange/users/0xabad1dea/statuses/116458710417291457</link><guid isPermaLink="true">https://board.circlewithadot.net/post/https://infosec.exchange/users/0xabad1dea/statuses/116458710417291457</guid><dc:creator><![CDATA[0xabad1dea@infosec.exchange]]></dc:creator><pubDate>Fri, 24 Apr 2026 08:21:36 GMT</pubDate></item><item><title><![CDATA[Reply to Two thousand year old #opsec advice: on Fri, 24 Apr 2026 08:19:58 GMT]]></title><description><![CDATA[<p><span><a href="/user/0xabad1dea%40infosec.exchange">@<span>0xabad1dea</span></a></span> I must know, what kind of pen gives that ink effect? (It's so pretty!)</p>]]></description><link>https://board.circlewithadot.net/post/https://infosec.exchange/users/catsalad/statuses/116458704006772816</link><guid isPermaLink="true">https://board.circlewithadot.net/post/https://infosec.exchange/users/catsalad/statuses/116458704006772816</guid><dc:creator><![CDATA[catsalad@infosec.exchange]]></dc:creator><pubDate>Fri, 24 Apr 2026 08:19:58 GMT</pubDate></item></channel></rss>