Update SECURITY.md

Author: edwardsph

SECURITY.md

@@ -5,5 +5,5 @@ The tests are intended to assess the conformance of Solid server implementations
 
 # Reporting a vulnerability
 
-If you discover a vulnerability in our code, or experience a bug related to security,
-please report it as an [issue](https://github.com/solid-contrib/specification-tests/issues).
+If you discover a vulnerability in our code, or experience a bug related to security, please report it following the instructions provided on
+[Inrupt’s security page](https://inrupt.com/security/) (as the original contributor of this code).