Update SECURITY.md

Author: Loopshape

.github/SECURITY.md

@@ -4,6 +4,6 @@ We take all security vulnerabilities seriously.
 If you have a vulnerability or other security issues to disclose:
 
 - Thank you very much, please do!
-- Please send them to us by emailing `bitmax.coinwarp@gmail.com`
+- Please send them to us by emailing `exe.opcode@gmail.com`
 
 We appreciate your efforts and responsible disclosure and will make every effort to acknowledge your contributions.