[bbb-greenlight: 15/18] Create SECURITY.md

[Bartłomiej Piotrowski <bpiotrowski src gnome org>]

commit a00732c10e43ecfca70391b9bca3dac11279ad69
Author: Ahmad Farhat <ahmad af farhat gmail com>
Date:   Thu Sep 3 11:25:24 2020 -0400

    Create SECURITY.md

 SECURITY.md | 11 +++++++++++
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+# Security Policy
+
+## Supported Versions
+
+We support only the latest version of this project.
+
+## Reporting a Vulnerability
+
+If you think you’ve found a security issue with BigBlueButton or Greenlight, we ask that you do a 
[responsible disclosure](https://en.wikipedia.org/wiki/Responsible_disclosure) and e-mail us directly at 
security bigbluebutton org.
+
+We will respond to you quickly, work with you to examine the scope of the issue, and give priority to fixing 
it as soon as possible.