Add "sensitive information" warning output

freqtrade/configuration/configuration.py

@@ -200,6 +200,12 @@ class Configuration:
             config['exportfilename'] = (config['user_data_dir']
                                         / 'backtest_results')
 
+        if self.args.get('show_sensitive'):
+            logger.warning(
+                "Sensitive information will be shown in the upcomming output. "
+                "Please make sure to never share this output without redacting "
+                "the information yourself.")
+
     def _process_optimize_options(self, config: Config) -> None:
 
         # This will override the strategy configuration

tests/commands/test_commands.py

@@ -1581,7 +1581,7 @@ def test_start_strategy_updater(mocker, tmp_path):
     assert sc_mock.call_count == 2
 
 
-def test_start_show_config(capsys):
+def test_start_show_config(capsys, caplog):
     args = [
         "show-config",
         "--config",
@@ -1608,3 +1608,4 @@ def test_start_show_config(capsys):
     assert "Your combined configuration is:" in captured.out
     assert '"max_open_trades":' in captured.out
     assert '"secret": "REDACTED"' not in captured.out
+    assert log_has_re(r'Sensitive information will be shown in the upcomming output.*', caplog)