Index: SECURITY.md
==================================================================
--- SECURITY.md
+++ SECURITY.md
@@ -4,6 +4,6 @@
 
 Please use email to report any any security vulnerabilities:
 
 - [Peter Gawthrop](http://www.gawthrop.net/) [\<peter.gawthrop@unimelb.edu.au\>](mailto:peter.gawthrop@unimelb.edu.au)
 - [Geraint Paul Bevan](https://www.gcu.ac.uk/cebe/staff/geraint%20bevan/) [\<Geraint.Bevan@gcu.ac.uk\>](mailto:Geraint.Bevan@gcu.ac.uk), [\<geraint@enchant.me.uk\>](mailto:geraint@enchant.me.uk) [*(https://www.enchant.me.uk)*](https://www.enchant.me.uk/)
-- [Jeffrey H. Johnson](mailto:trnsz+reduce-algebra-mtt-security@pobox.com)
+- [Jeffrey H. Johnson](https://prone.ws/) [\<trnsz@pobx.com\>](mailto:trnsz+reduce-algebra-mtt-security@pobox.com)