diff --git a/interfaces/inner_kits/BUILD.gn b/interfaces/inner_kits/BUILD.gn
index e451a3b12565574bfc7dfd9a32422ba7fea0db5e..0a2a37fd228dfef0c6478cb8fdcefa0ccf8deaf1 100644
--- a/interfaces/inner_kits/BUILD.gn
+++ b/interfaces/inner_kits/BUILD.gn
@@ -67,6 +67,12 @@ ohos_shared_library("libdhfwk_sdk") {
     "LOG_DOMAIN=0xD004100",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   external_deps = [
     "cJSON:cjson",
     "c_utils:utils",
@@ -77,7 +83,12 @@ ohos_shared_library("libdhfwk_sdk") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   innerapi_tags = [ "platformsdk" ]
   subsystem_name = "distributedhardware"
diff --git a/interfaces/kits/napi/BUILD.gn b/interfaces/kits/napi/BUILD.gn
index a60cf83ed5c8827a45bb8768fad620ca434eac5f..55425a977a158121be905c7c4328ac45e09bf189 100644
--- a/interfaces/kits/napi/BUILD.gn
+++ b/interfaces/kits/napi/BUILD.gn
@@ -44,6 +44,14 @@ ohos_shared_library("hardwaremanager") {
     "LOG_DOMAIN=0xD004100",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
+  cflags_cc = cflags
+
   external_deps = [
     "access_token:libtokenid_sdk",
     "bundle_framework:appexecfwk_base",
diff --git a/services/distributedhardwarefwkservice/BUILD.gn b/services/distributedhardwarefwkservice/BUILD.gn
index a3d7134e402eb35f1dd84c30b722f9dd3566c6e8..851eec27ae1ea734a89397c93b90253f25022a7e 100644
--- a/services/distributedhardwarefwkservice/BUILD.gn
+++ b/services/distributedhardwarefwkservice/BUILD.gn
@@ -118,6 +118,14 @@ ohos_shared_library("distributedhardwarefwksvr") {
     "LOG_DOMAIN=0xD004100",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
+  cflags_cc = cflags
+
   if (distributed_hardware_fwk_low_latency) {
     defines += [ "DHARDWARE_LOW_LATENCY" ]
   }
diff --git a/utils/BUILD.gn b/utils/BUILD.gn
index 9225c46852686aec6c27cb28427303c31c4b38c8..39e691e2d5498985964c08413c02d4e8038c04c5 100644
--- a/utils/BUILD.gn
+++ b/utils/BUILD.gn
@@ -59,6 +59,14 @@ ohos_shared_library("distributedhardwareutils") {
     "OPENSSL_SUPPRESS_DEPRECATED",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
+  cflags_cc = cflags
+
   external_deps = [
     "cJSON:cjson",
     "c_utils:utils",