diff --git a/apps/emqx_authn/src/emqx_authn_api.erl b/apps/emqx_authn/src/emqx_authn_api.erl
index 0a7f67f5a..ad9cd8579 100644
--- a/apps/emqx_authn/src/emqx_authn_api.erl
+++ b/apps/emqx_authn/src/emqx_authn_api.erl
@@ -1419,14 +1419,14 @@ request_user_create_examples() ->
             summary => <<"Regular user">>,
             value => #{
                 user_id => <<"user1">>,
-                password => <<"secret">>
+                password => <<"******">>
             }
         },
         super_user => #{
             summary => <<"Superuser">>,
             value => #{
                 user_id => <<"user2">>,
-                password => <<"secret">>,
+                password => <<"******">>,
                 is_superuser => true
             }
         }
@@ -1437,13 +1437,13 @@ request_user_update_examples() ->
         regular_user => #{
             summary => <<"Update regular user">>,
             value => #{
-                password => <<"newsecret">>
+                password => <<"******">>
             }
         },
         super_user => #{
             summary => <<"Update user and promote to superuser">>,
             value => #{
-                password => <<"newsecret">>,
+                password => <<"******">>,
                 is_superuser => true
             }
         }
diff --git a/apps/emqx_bridge/src/emqx_bridge_api.erl b/apps/emqx_bridge/src/emqx_bridge_api.erl
index 586c66bef..44a478bca 100644
--- a/apps/emqx_bridge/src/emqx_bridge_api.erl
+++ b/apps/emqx_bridge/src/emqx_bridge_api.erl
@@ -235,7 +235,7 @@ mqtt_main_example() ->
         server => <<"127.0.0.1:1883">>,
         proto_ver => <<"v4">>,
         username => <<"foo">>,
-        password => <<"bar">>,
+        password => <<"******">>,
         clean_start => true,
         keepalive => <<"300s">>,
         retry_interval => <<"15s">>,
diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_clickhouse.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_clickhouse.erl
index 80a317d2b..0b611c142 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_clickhouse.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_clickhouse.erl
@@ -50,7 +50,7 @@ values(_Method, Type) ->
         database => <<"mqtt">>,
         pool_size => 8,
         username => <<"default">>,
-        password => <<"public">>,
+        password => <<"******">>,
         sql => ?DEFAULT_SQL,
         batch_value_separator => ?DEFAULT_BATCH_VALUE_SEPARATOR,
         local_topic => <<"local/topic/#">>,
diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_dynamo.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_dynamo.erl
index e55be61e5..e6a3d1a58 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_dynamo.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_dynamo.erl
@@ -46,7 +46,7 @@ values(_Method) ->
         database => <<"mqtt">>,
         pool_size => 8,
         username => <<"root">>,
-        password => <<"public">>,
+        password => <<"******">>,
         template => ?DEFAULT_TEMPLATE,
         local_topic => <<"local/topic/#">>,
         resource_opts => #{
diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_influxdb.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_influxdb.erl
index 1ad3af23c..5693a1902 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_influxdb.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_influxdb.erl
@@ -61,7 +61,7 @@ values("influxdb_api_v1", post) ->
     TypeOpts = #{
         database => <<"example_database">>,
         username => <<"example_username">>,
-        password => <<"examlpe_password">>,
+        password => <<"******">>,
         server => <<"127.0.0.1:8086">>
     },
     values(common, "influxdb_api_v1", SupportUint, TypeOpts);
diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_kafka.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_kafka.erl
index 529e28dea..f3dfa5964 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_kafka.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_kafka.erl
@@ -64,7 +64,7 @@ values(common_config) ->
         authentication => #{
             mechanism => <<"plain">>,
             username => <<"username">>,
-            password => <<"password">>
+            password => <<"******">>
         },
         bootstrap_hosts => <<"localhost:9092">>,
         connect_timeout => <<"5s">>,
diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mongodb.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mongodb.erl
index bc450f39b..57763425a 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mongodb.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mongodb.erl
@@ -149,7 +149,7 @@ values(common, MongoType, Method, TypeOpts) ->
         srv_record => false,
         pool_size => 8,
         username => <<"myuser">>,
-        password => <<"mypass">>
+        password => <<"******">>
     },
     MethodVals = method_values(MongoType, Method),
     Vals0 = maps:merge(MethodVals, Common),
diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mysql.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mysql.erl
index eed4172ab..5825eb370 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mysql.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_mysql.erl
@@ -47,7 +47,7 @@ values(_Method) ->
         database => <<"test">>,
         pool_size => 8,
         username => <<"root">>,
-        password => <<"">>,
+        password => <<"******">>,
         sql => ?DEFAULT_SQL,
         local_topic => <<"local/topic/#">>,
         resource_opts => #{
diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_pgsql.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_pgsql.erl
index 46132bd99..2b292b4b6 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_pgsql.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_pgsql.erl
@@ -49,7 +49,7 @@ values(_Method, Type) ->
         database => <<"mqtt">>,
         pool_size => 8,
         username => <<"root">>,
-        password => <<"public">>,
+        password => <<"******">>,
         sql => ?DEFAULT_SQL,
         local_topic => <<"local/topic/#">>,
         resource_opts => #{
diff --git a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_redis.erl b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_redis.erl
index fa6958b6d..bcc2e9ba1 100644
--- a/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_redis.erl
+++ b/lib-ee/emqx_ee_bridge/src/emqx_ee_bridge_redis.erl
@@ -77,7 +77,7 @@ values(common, RedisType, SpecificOpts) ->
         enable => true,
         local_topic => <<"local/topic/#">>,
         pool_size => 8,
-        password => <<"secret">>,
+        password => <<"******">>,
         command_template => [<<"LPUSH">>, <<"MSGS">>, <<"${payload}">>],
         resource_opts => values(resource_opts, RedisType, #{}),
         ssl => #{enable => false}