diff --git a/.well-known/security.txt b/.well-known/security.txt
new file mode 100644
index 0000000..f3c9151
--- /dev/null
+++ b/.well-known/security.txt
@@ -0,0 +1,15 @@
+# Contact me here
+Contact: mailto:contact@louis-vallat.xyz
+
+# Consider this file outdated if you found it after
+Expires: 2022-12-20T23:00:00.000Z
+
+# If you need to talk with me securely, use this PGP key and send a message to my private email address insteand of my public contact one
+Encryption: https://louis-vallat.xyz/key.pgp
+
+# I can talk in these languages
+Preferred-Languages: en,fr
+
+# This file is originating from
+Canonical: https://louis-vallat.xyz/.well-known/security.txt
+