Update SECURITY.md

SECURITY.md

@@ -9,4 +9,14 @@
 
 ## Reporting a Vulnerability
 
-To report a security vulnerability, please join [The Iris Discord](https://discord.gg/jQJnav2jPu) and dm one of the docs developers. Please include any relevent reproduction steps adn all information. Please comply with any reasonable requests. You will recive any updates if relevent.
+If you've found a vulnerability, we would like to know so we can fix it before it is released publicly. Do not open a GitHub issue for a found vulnerability.
+
+Please join [The Iris Discord](https://discord.gg/jQJnav2jPu) and dm one of the docs developers. Send the details:
+
+- where the vulnerability can be observed
+- a brief description of the vulnerability
+- optionally the type of vulnerability
+- non-destructive exploitation details
+- We will do our best to reply as fast as possible.
+
+This notice is inspired by [Modrinth's Security Policy](https://modrinth.com/legal/security).