Remove email address

Make consistent with other pages by linking to the cyber team site instead of directly providing an email address

source/standards/web-application-firewall.html.md.erb

@@ -79,7 +79,7 @@ GOV.UK Pay operates under the governance of [PCI compliance and DSS point 6.6](h
 
 ## Contact GDS Information Security or CO:D Cyber Security
 
-Contact GDS [Information Security][] or the security architects in the CO:D Cyber Security team by email at [[email protected]](mailto:[email protected].gov.uk) or use the [#cyber-security-help Slack channel](https://gds.slack.com/messages/CCMPJKFDK/) for help and advice.
+Contact GDS [Information Security][] or the security architects in the [CO:D Cyber Security team](https://sites.google.com/cabinetoffice.gov.uk/cybersecurity/about-the-team) or use the [#cyber-security-help Slack channel](https://gds.slack.com/messages/CCMPJKFDK/) for help and advice.
 
 [Information Security]: https://sites.google.com/a/digital.cabinet-office.gov.uk/gds/directorates-and-groups/cto-and-ciso-office/information-security
 [Cyber Assessment Framework]: https://www.ncsc.gov.uk/collection/cyber-assessment-framework/introduction-to-caf