Merge pull request #10 from mobilecoinofficial/feature/security-policy

add security policy

.gitignore

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 .direv/
 .direnv/
 *.tgz
+
+*~

SECURITY.md

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+# Security Audits and Analyses
+
+We greatly welcome security audits and analysis of our projects.
+
+We are happy to work with you in assessing potential issues and in
+developing effective secure solutions.
+
+Should you find anything of concern, please feel free to email us at
+[security@mobilecoin.com](mailto:security@mobilecoin.com). We
+appreciate responsible disclosure and are happy to collaborate on
+timed announcements to credit you for your research discovery.
+
+## Out of Scope
+
+Anything in `/vendor` is out-of-scope from our perspective, although
+we are happy to help coodinate talking to the respective parties in
+control of upstream maintenance of works and/or libraries which we
+depend upon.
+
+Also out-of-scope is hardware security issues with particular devices.
+For example, should a certain chipset utilised by a vendor be subject
+to timing attacks, fault injection attacks, etc., this is not within
+scope.