Create SECURITY.md file

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SECURITY.md

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+# Security Policy
+
+## Supported Versions
+
+| Version | Supported          |
+| ------- | ------------------ |
+| 3.x.x   | :white_check_mark: |
+| 2.x.x   | :white_check_mark: |
+| < 2.x   | :x:                |
+
+## Reporting a Vulnerability
+
+To report a vulnerability, use security@cisofy.com
+
+See our [security page](https://cisofy.com/security/) for more details.
+
+## Preferred language
+
+English
+
+## Acknowledgments
+
+https://cisofy.com/security/#thanks
+
+## Other
+
+See the latest 'security.txt' at https://cisofy.com/.well-known/security.txt