Change vulnerability reporting email address

Updated the contact email for reporting security vulnerabilities.

Author: szabodanika

SECURITY.md

@@ -6,7 +6,4 @@ Currently we only have capacity to support the latest version of MicroBin. We re
 
 ## Reporting a Vulnerability
 
-Security vulnerabilities can be reported directly to the developer/maintainer at d@szab.eu.
-
-Sensitive information may be GPG encrypted with my public key available at 
-https://szab.eu/assets/files/daniel-szabo-pub.asc.
+Security vulnerabilities can be reported directly to the developer at daniel.szabo@mountaineerai.com.