SECURITY.md: Update information

cmouse · cmouse · commit c3e6b47ac245 · 2023-01-18T14:52:54.000+02:00
diff --git a/SECURITY.md b/SECURITY.md
@@ -6,5 +6,5 @@ For community, we support only the latest released version. Please see https://w
 
 ## Reporting a Vulnerability or security issue
 
-To report vulnerabilities and other security issues, please use https://hackerone.com/open-xchange.
+To report vulnerabilities and other security issues, please use https://yeswehack.com/programs/dovecot or email us at [security@dovecot.org](mailto:security@dovecot.org).
 Please read the program scope carefully.
