diff --git a/app/models/mdm/vuln_attempt.rb b/app/models/mdm/vuln_attempt.rb
index 0282e56a..ac284bd0 100755
--- a/app/models/mdm/vuln_attempt.rb
+++ b/app/models/mdm/vuln_attempt.rb
@@ -63,6 +63,20 @@ class Mdm::VulnAttempt < ApplicationRecord
   #
   #   @return [String]
 
+  # @!attribute check_code
+  #   The check code returned by the module's check method, if this attempt
+  #   was a vulnerability check rather than an exploitation attempt.
+  #
+  #   @return [String] one of 'vulnerable', 'appears', 'safe', 'detected', 'unknown'
+  #   @return [nil] if this was an exploitation attempt, not a check
+
+  # @!attribute check_detail
+  #   The human-readable message from the module's check method describing
+  #   why the target was determined to be vulnerable, safe, etc.
+  #
+  #   @return [String] if {#check_code} is present.
+  #   @return [nil] if this was an exploitation attempt, not a check
+
   # @!attribute username
   #   The {Mdm::User#username name of the user} that made this attempt.
   #
diff --git a/db/migrate/20260411000000_add_check_code_to_vuln_attempts.rb b/db/migrate/20260411000000_add_check_code_to_vuln_attempts.rb
new file mode 100644
index 00000000..32845267
--- /dev/null
+++ b/db/migrate/20260411000000_add_check_code_to_vuln_attempts.rb
@@ -0,0 +1,6 @@
+class AddCheckCodeToVulnAttempts < ActiveRecord::Migration[7.0]
+  def change
+    add_column :vuln_attempts, :check_code, :string
+    add_column :vuln_attempts, :check_detail, :text
+  end
+end
diff --git a/spec/app/models/mdm/vuln_attempt_spec.rb b/spec/app/models/mdm/vuln_attempt_spec.rb
index 1917b677..fbcfe0e3 100644
--- a/spec/app/models/mdm/vuln_attempt_spec.rb
+++ b/spec/app/models/mdm/vuln_attempt_spec.rb
@@ -20,6 +20,8 @@
       it { is_expected.to have_db_column(:session_id).of_type(:integer) }
       it { is_expected.to have_db_column(:loot_id).of_type(:integer) }
       it { is_expected.to have_db_column(:fail_detail).of_type(:text) }
+      it { is_expected.to have_db_column(:check_code).of_type(:string) }
+      it { is_expected.to have_db_column(:check_detail).of_type(:text) }
     end
   end
 
diff --git a/spec/dummy/db/structure.sql b/spec/dummy/db/structure.sql
index 65d71d72..bfde563e 100644
--- a/spec/dummy/db/structure.sql
+++ b/spec/dummy/db/structure.sql
@@ -1755,7 +1755,9 @@ CREATE TABLE public.vuln_attempts (
     module text,
     session_id integer,
     loot_id integer,
-    fail_detail text
+    fail_detail text,
+    check_code character varying,
+    check_detail text
 );
 
 
@@ -3602,6 +3604,7 @@ INSERT INTO "schema_migrations" (version) VALUES
 ('20250721114306'),
 ('20251231162000'),
 ('20260130124052'),
+('20260411000000'),
 ('21'),
 ('22'),
 ('23'),