Create SECURITY.md

SECURITY.md

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+# Polygon Technology Security Information
+
+## Link to vulnerability disclosure details (Bug Bounty).
+
+- Websites and Applications: https://hackerone.com/polygon-technology
+- Smart Contracts: https://immunefi.com/bounty/polygon
+
+## Languages that our team speaks and understands.
+
+Preferred-Languages: en
+
+## Security-related job openings at Polygon.
+
+https://polygon.technology/careers
+
+## Polygon security contact details.
+
+[email protected]
+
+## The URL for accessing the security.txt file.
+
+Canonical: https://polygon.technology/security.txt