Create SECURITY.md

Author: DaneEveritt

SECURITY.md

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+# Security Policy
+
+## Supported Versions
+The following versions of Pterodactyl are receiving active support and maintenance. Any security vulnerabilities discovered must be reproducible in supported versions.
+
+| Panel | Daemon       | Supported          |
+| ----- | ------------ | ------------------ |
+| 1.0.x | wings@1.0.x  | :white_check_mark: |
+| 0.7.x | daemon@0.6.x | :white_check_mark: |
+| 0.6.x | daemon@0.5.x | :x:                |
+| 0.5.x | daemon@0.4.x | :x:                |
+
+## Reporting a Vulnerability
+
+Please reach out directly to any project team member on Discord when reporting a security vulnerability, or you can send an email to `dane [ät] pterodactyl.io`.
+
+We make every effort to respond as soon as possible, although it may take a day or two for us to sync internally and determine the severity of the report and its impact. Please, _do not_ use a public facing channel or GitHub issues to report sensitive security issues.
+
+As part of our process, we will create a security advisory for the affected versions and disclose it publicly, usually two to four weeks after a releasing a version that addresses it.