Updating security reachout email (#6778) (#6787)

(cherry picked from commit 99c7862)

Signed-off-by: varun-lodaya <varunml@amazon.com>
Signed-off-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <github-actions[bot]@users.noreply.github.com>

SECURITY.md

@@ -1,6 +1,6 @@
 ## Reporting a Vulnerability
 
-If you discover a potential security issue in this project we ask that you notify AWS/Amazon Security via our [vulnerability reporting page](http://aws.amazon.com/security/vulnerability-reporting/) or directly via email to aws-security@amazon.com. Please do **not** create a public GitHub issue.
+If you discover a potential security issue in this project we ask that you notify OpenSearch Security directly via email to security@opensearch.org. Please do **not** create a public GitHub issue.
 
 ## Fixing a Vulnerability