diff --git a/br/pkg/lightning/lightning.go b/br/pkg/lightning/lightning.go
index 2db76b1001078..a00ea10efdcfc 100644
--- a/br/pkg/lightning/lightning.go
+++ b/br/pkg/lightning/lightning.go
@@ -693,8 +693,7 @@ func (l *Lightning) handlePostTask(w http.ResponseWriter, req *http.Request) {
 		writeJSONError(w, http.StatusBadRequest, "cannot read request", err)
 		return
 	}
-	filteredData := utils.HideSensitive(string(data))
-	log.L().Info("received task config", zap.String("content", filteredData))
+	log.L().Info("received task config")
 
 	cfg := config.NewConfig()
 	if err = cfg.LoadFromGlobal(l.globalCfg); err != nil {
diff --git a/br/pkg/utils/BUILD.bazel b/br/pkg/utils/BUILD.bazel
index c06a452711b9d..3e28195d90d4b 100644
--- a/br/pkg/utils/BUILD.bazel
+++ b/br/pkg/utils/BUILD.bazel
@@ -19,7 +19,6 @@ go_library(
         "retry.go",
         "safe_point.go",
         "schema.go",
-        "sensitive.go",
         "store_manager.go",
         "suspend_importing.go",
         "worker.go",
@@ -86,11 +85,10 @@ go_test(
         "retry_test.go",
         "safe_point_test.go",
         "schema_test.go",
-        "sensitive_test.go",
     ],
     embed = [":utils"],
     flaky = True,
-    shard_count = 33,
+    shard_count = 32,
     deps = [
         "//br/pkg/errors",
         "//br/pkg/metautil",
diff --git a/br/pkg/utils/sensitive.go b/br/pkg/utils/sensitive.go
deleted file mode 100644
index fcc31ee30b78d..0000000000000
--- a/br/pkg/utils/sensitive.go
+++ /dev/null
@@ -1,23 +0,0 @@
-// Copyright 2022 PingCAP, Inc. Licensed under Apache-2.0.
-
-package utils
-
-import (
-	"regexp"
-)
-
-var (
-	passwordPatterns = `(password[\s]*=[\s]*(\\")?)(.*?)((\\")?\\n)`
-
-	passwordRegexp *regexp.Regexp
-)
-
-func init() {
-	passwordRegexp = regexp.MustCompile(passwordPatterns)
-}
-
-// HideSensitive replace password with ******.
-func HideSensitive(input string) string {
-	output := passwordRegexp.ReplaceAllString(input, "$1******$4")
-	return output
-}
diff --git a/br/pkg/utils/sensitive_test.go b/br/pkg/utils/sensitive_test.go
deleted file mode 100644
index a14ce0619eb85..0000000000000
--- a/br/pkg/utils/sensitive_test.go
+++ /dev/null
@@ -1,41 +0,0 @@
-// Copyright 2022 PingCAP, Inc. Licensed under Apache-2.0.
-
-package utils
-
-import (
-	"testing"
-
-	"github.com/stretchr/testify/require"
-)
-
-func TestHideSensitive(t *testing.T) {
-	strs := []struct {
-		old string
-		new string
-	}{
-		{
-			`host = "127.0.0.1"\n  user = "root"\n  password = "/Q7B9DizNLLTTfiZHv9WoEAKamfpIUs="\n  port = 3306\n`,
-			`host = "127.0.0.1"\n  user = "root"\n  password = ******\n  port = 3306\n`,
-		},
-		{
-			`host = "127.0.0.1"\n  user = "root"\n  password = ""\n  port = 3306\n`,
-			`host = "127.0.0.1"\n  user = "root"\n  password = ******\n  port = 3306\n`,
-		},
-		{
-			`host = "127.0.0.1"\n  user = "root"\n  password= "/Q7B9DizNLLTTfiZHv9WoEAKamfpIUs="\n  port = 3306\n`,
-			`host = "127.0.0.1"\n  user = "root"\n  password= ******\n  port = 3306\n`,
-		},
-		{
-			`host = "127.0.0.1"\n  user = "root"\n  password =""\n  port = 3306\n`,
-			`host = "127.0.0.1"\n  user = "root"\n  password =******\n  port = 3306\n`,
-		},
-		{
-			`host = "127.0.0.1"\n  user = "root"\n  password=""\n  port = 3306\n`,
-			`host = "127.0.0.1"\n  user = "root"\n  password=******\n  port = 3306\n`,
-		},
-	}
-	for i, str := range strs {
-		t.Logf("case #%d\n", i)
-		require.Equal(t, str.new, HideSensitive(str.old))
-	}
-}