diff --git a/app/controllers/concerns/signature_verification.rb b/app/controllers/concerns/signature_verification.rb
index 1d27c92c8..b0c4fff8b 100644
--- a/app/controllers/concerns/signature_verification.rb
+++ b/app/controllers/concerns/signature_verification.rb
@@ -119,6 +119,8 @@ module SignatureVerification
   private
 
   def fail_with!(message, **options)
+    Rails.logger.warn { "Signature verification failed: #{message}" }
+
     @signature_verification_failure_reason = { error: message }.merge(options)
     @signed_request_actor = nil
   end