diff --git a/zephyr/filters.py b/zephyr/filters.py
index 816ac50df1..6ff676de47 100644
--- a/zephyr/filters.py
+++ b/zephyr/filters.py
@@ -2,9 +2,10 @@ from django.views.debug import SafeExceptionReporterFilter
 
 class HumbugExceptionReporterFilter(SafeExceptionReporterFilter):
     def get_post_parameters(self, request):
-        filtered_post = SafeExceptionReporterFilter.get_post_parameters(self, request)
-        if 'content' in filtered_post:
-            filtered_post['content'] = '**********'
-        if 'secret' in filtered_post:
-            filtered_post['secret'] = '**********'
+        filtered_post = SafeExceptionReporterFilter.get_post_parameters(self, request).copy()
+        filtered_vars = ['content', 'secret', 'password', 'key', 'api_key', 'subject', 'stream']
+
+        for var in filtered_vars:
+            if var in filtered_post:
+                filtered_post[var] = '**********'
         return filtered_post