chore: Add a dedicated link to the security program

Signed-off-by: Joas Schilling <coding@schilljs.com>

.github/ISSUE_TEMPLATE/BUG_REPORT.yml

@@ -46,7 +46,7 @@ body:
       label: Steps to reproduce
       description: |
         Describe the steps to reproduce the bug.
-        The better your description is _(go 'here', click 'there'...)_ the fastest you'll get an _(accurate)_ answer. 
+        The better your description is _(go 'here', click 'there'...)_ the fastest you'll get an _(accurate)_ answer.
       value: |
         1.
         2.
@@ -205,7 +205,7 @@ body:
         Provide Nextcloud Signing status.
         First, login as Admin user into your Nextcloud, then access this URL:
         ```shell
-        https://yournextcloud.tld/index.php/settings/integrity/failed 
+        https://yournextcloud.tld/index.php/settings/integrity/failed
         ```
         > NOTE: This will be automatically formatted into code for better readability.
       render: shell

.github/ISSUE_TEMPLATE/config.yml

@@ -1,5 +1,8 @@
 blank_issues_enabled: false
 contact_links:
+    - name: 🚨 Report a security or privacy issue
+      url: https://hackerone.com/nextcloud
+      about: Report security and privacy related issues privately to the Nextcloud team, so we can coordinate the fix and release without potentially exposing all Nextcloud servers and users in the meantime.
     - name: ❓ Community Support and Help
       url: https://help.nextcloud.com/
       about: Configuration, webserver/proxy or performance issues and other questions