diff --git a/opsec/high_availability/index.html b/opsec/high_availability/index.html
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@@ -217,7 +217,10 @@ This Diagram shows where the attack takes place and how a redundant setup preven
 
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 					<h4>About Mulligan Security</h4>
-                    <p style="word-wrap: break-word;"><u>Donate XMR:</u><br>86NCojqYmjwim4NGZzaoLS2ozbLkMaQTnd3VVa9MdW1jVpQbseigSfiCqYGrM1c5rmZ173mrp8RmvPsvspG8jGr99yK3PSs</p></br><p><u>Contact:</u> mulligansecurity@riseup.net <br><a href="http://msec2nnqtbwh5c5yxpiswzwnqperok5k33udj7t6wmqcleu3ifj34sqd.onion">website</a></p>
+                    <p style="word-wrap: break-word;"><u>Donate XMR:</u><br>86NCojqYmjwim4NGZzaoLS2ozbLkMaQTnd3VVa9MdW1jVpQbseigSfiCqYGrM1c5rmZ173mrp8RmvPsvspG8jGr99yK3PSs</p></br><p><u>Contact:</u> mulligansecurity@riseup.net <br><a href="http://msec2nnqtbwh5c5yxpiswzwnqperok5k33udj7t6wmqcleu3ifj34sqd.onion">website</a>
+                    <br>
+                    <a href="https://simplex.chat/contact#/?v=2-7&smp=smp%3A%2F%2FiZJOs1BYKxD2nEndBtacHlBP-bNKv3gywICYPZZjXXE%3D%40chatnedvznvcnsovrm3e6jrgt6pkpai5i3rgslrrxlnv352ardboebid.onion%2FtT5R0tQWBzJPAkjvH-wai4PnpfTor89R%23%2F%3Fv%3D1-3%26dh%3DMCowBQYDK2VuAyEA_7oNMJAjBrt210CSc2LEIZJh5BFizPx7JUYFCmj8p1k%253D">SimpleX</a>
+                    </p>
 
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