chore: update SECURITY.md

Author: harbournick

.github/ISSUE_TEMPLATE/config.yml

@@ -2,5 +2,8 @@ blank_issues_enabled: false
 
 contact_links:
   - name: 💬 Join our Discord
-    url: https://discord.gg/WjkQEwZHBK
+    url: https://discord.gg/<YOUR_INVITE_CODE>
     about: Have a question, need help, or want to chat? Join our community Discord.
+  - name: 🔐 Report a security vulnerability
+    url: https://github.com/@harbour-enterprises/superdoc/security/policy
+    about: Please follow our security policy.

SECURITY.md

@@ -2,10 +2,25 @@
 
 ## Supported Versions
 
-| Version  | Supported          |
-| -------- | ------------------ |
-| > 1.10.0 | :white_check_mark: |
+We actively support and patch the latest minor version of SuperDoc.
+
+| Version  | Supported    |
+| -------- | ------------ |
+| ≥ 0.15.0 | ✅ Supported |
 
 ## Reporting a Vulnerability
 
-Use the [Github Vulnaribilty Reporter](https://github.com/harbour-enterprises/SuperDoc/security) tool to report your findings.
+If you believe you’ve found a security issue in SuperDoc, please **do not open a public GitHub issue**.
+
+Instead, report it privately through [GitHub’s Security Advisories](https://github.com/harbour-enterprises/SuperDoc/security/advisories/new).  
+This ensures the report is only visible to maintainers.
+
+If you prefer email, you can also contact us at: **q@superdoc.dev**
+
+## Our Process
+
+- We will acknowledge receipt within **2 business days**.
+- We will provide a status update within **7 days**.
+- Once a fix is available, we’ll coordinate a responsible disclosure with you.
+
+Thank you for helping keep SuperDoc and its users safe!