http://vh.cmp.uea.ac.uk/index.php?action=history&feed=atom&title=MacOS_Quarantine 2026-07-04T17:52:27Z Revision history for this page on the wiki MediaWiki 1.43.9 http://vh.cmp.uea.ac.uk/index.php?title=MacOS_Quarantine&diff=616&oldid=prev 2025-09-19T18:08:08Z

<p></p> <table style="background-color: #fff; color: #202122;" data-mw="interface"> <col class="diff-marker" /> <col class="diff-content" /> <col class="diff-marker" /> <col class="diff-content" /> <tr class="diff-title" lang="en-GB"> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">← Older revision</td> <td colspan="2" style="background-color: #fff; color: #202122; text-align: center;">Revision as of 18:08, 19 September 2025</td> </tr><tr><td colspan="2" class="diff-lineno" id="mw-diff-left-l6">Line 6:</td> <td colspan="2" class="diff-lineno">Line 6:</td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Later version of macOS simply block access when the attribute is present.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>Later version of macOS simply block access when the attribute is present.</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><br></td></tr> <tr><td class="diff-marker" data-marker="−"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #ffe49c; vertical-align: top; white-space: pre-wrap;"><div>This attribute can be removed by launching '''Terminal''' <del style="font-weight: bold; text-decoration: none;">end </del>entering the command</div></td><td class="diff-marker" data-marker="+"></td><td style="color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #a3d3ff; vertical-align: top; white-space: pre-wrap;"><div>This attribute can be removed by launching '''Terminal''' <ins style="font-weight: bold; text-decoration: none;">and </ins>entering the command</div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  xattr -dr com.apple.quarantine file  </div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>  xattr -dr com.apple.quarantine file  </div></td></tr> <tr><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This will remove the attribute from a file, or application, or all contents of a directory. Access will then be permitted unhindered.</div></td><td class="diff-marker"></td><td style="background-color: #f8f9fa; color: #202122; font-size: 88%; border-style: solid; border-width: 1px 1px 1px 4px; border-radius: 0.33em; border-color: #eaecf0; vertical-align: top; white-space: pre-wrap;"><div>This will remove the attribute from a file, or application, or all contents of a directory. Access will then be permitted unhindered.</div></td></tr> </table>

John.Glauert http://vh.cmp.uea.ac.uk/index.php?title=MacOS_Quarantine&diff=615&oldid=prev 2025-09-19T18:07:12Z

<p>Using xattr to remove quarantine restrictions</p> <p><b>New page</b></p><div>= macOS Quarantine =<br /> Files downloaded by macOS are tagged with an extended attribute &lt;code&gt;com.apple.quarantine&lt;/code&gt; which will block applications from being launched. <br /> <br /> On earlier macOS versions it was possible to use a right-click to bring up a dialogue that could bypass the quarantine.<br /> <br /> Later version of macOS simply block access when the attribute is present.<br /> <br /> This attribute can be removed by launching &#039;&#039;&#039;Terminal&#039;&#039;&#039; end entering the command<br /> xattr -dr com.apple.quarantine file <br /> This will remove the attribute from a file, or application, or all contents of a directory. Access will then be permitted unhindered.</div>

John.Glauert