docs: add default security policy template for NeoNephos projects

security-guidelines/security-guidelines.md

@@ -1 +1,63 @@
-# NeoNephos Security Guidelines
+# NeoNephos Security Policy Template
+
+This document provides a default security policy for NeoNephos Foundation projects. Each project organization should place a `SECURITY.md` file in its `.github` repository (or in individual repositories) based on this template.
+
+Replace all `{{ PLACEHOLDER }}` values with your organization-specific details before publishing.
+
+---
+
+# {{ PROJECT_NAME }} Security Policy
+
+The {{ PROJECT_NAME }} project takes the security of our software seriously, including all source code repositories managed through the [{{ ORG_NAME }}](https://github.com/{{ ORG_NAME }}) GitHub organization.
+
+If you believe you have found a security vulnerability in any {{ ORG_NAME }} repository, please report it to us as described below.
+
+## Reporting Security Issues
+
+**Please do not report security vulnerabilities through public GitHub issues.**
+
+Instead, please use one of the following channels:
+
+  - **GitHub Security Advisories** — navigate to the **Security** tab of the affected repository and select **"Report a vulnerability"** to privately report an advisory.
+  - **Email**: [{{ SECURITY_EMAIL }}](mailto:{{ SECURITY_EMAIL }})
+
+Please include the requested information listed below (as much as you can provide) to help us better understand the nature and scope of the possible issue:
+
+  - The repository name or URL
+  - Type of issue (buffer overflow, SQL injection, cross-site scripting, etc.)
+  - Full paths of the source file(s) related to the manifestation of the issue
+  - The location of the affected source code (tag/branch/commit or direct URL)
+  - Any particular configuration required to reproduce the issue
+  - Step-by-step instructions to reproduce the issue
+  - Proof-of-concept or exploit code (if possible)
+  - Impact of the issue, including how an attacker might exploit the issue
+
+This information will help us triage your report more quickly.
+
+## Preferred Languages
+
+We prefer all communications to be in English.
+
+## Disclosure Policy
+
+We follow the principle of [Coordinated Vulnerability Disclosure](https://en.wikipedia.org/wiki/Coordinated_vulnerability_disclosure). We ask that you:
+
+  - Allow us a reasonable time to investigate and address the issue before making any information public.
+  - Make a good faith effort to avoid privacy violations, data destruction, and disruption of services.
+  - Do not exploit the vulnerability beyond what is necessary to verify it.
+
+We commit to:
+
+  - Acknowledging receipt of your vulnerability report.
+  - Providing an estimated timeline for a fix.
+  - Notifying you when the vulnerability is resolved.
+
+---
+
+## Placeholders Reference
+
+| Placeholder | Description | Example |
+|---|---|---|
+| `{{ PROJECT_NAME }}` | Human-readable project name | Platform Mesh |
+| `{{ ORG_NAME }}` | GitHub organization name | platform-mesh |
+| `{{ SECURITY_EMAIL }}` | Security contact email | platform-mesh-security@lists.neonephos.org |