diff --git a/av_transport/av_trans_engine/av_receiver/BUILD.gn b/av_transport/av_trans_engine/av_receiver/BUILD.gn
index a41c37e9b34691283028495f8edeaff677399be3..2e2c26c32d9da184d78f787c33e9df6551d1cdf8 100644
--- a/av_transport/av_trans_engine/av_receiver/BUILD.gn
+++ b/av_transport/av_trans_engine/av_receiver/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2023-2024 Huawei Device Co., Ltd.
+# Copyright (c) 2023-2025 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -112,14 +112,22 @@ ohos_shared_library("distributed_av_receiver") {
     "//build/config/compiler:no_rtti",
     "//build/config/compiler:no_exceptions",
   ]
+
   cflags = [
     "-O2",
     "-fPIC",
     "-Wall",
     "-fexceptions",
+    "-fstack-protector-strong",
   ]
   cflags_cc = cflags
 
+  ldflags = [
+    "-fpie",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+  ]
+
   part_name = "distributed_hardware_fwk"
   subsystem_name = "distributedhardware"
 }
diff --git a/av_transport/av_trans_engine/av_sender/BUILD.gn b/av_transport/av_trans_engine/av_sender/BUILD.gn
index 02c2c58265b64a0a8b33154f4400237326fda852..37a4483c1f13c606994c2dde93dc043c694b8b3a 100644
--- a/av_transport/av_trans_engine/av_sender/BUILD.gn
+++ b/av_transport/av_trans_engine/av_sender/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2023-2024 Huawei Device Co., Ltd.
+# Copyright (c) 2023-2025 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -106,14 +106,22 @@ ohos_shared_library("distributed_av_sender") {
     "//build/config/compiler:no_rtti",
     "//build/config/compiler:no_exceptions",
   ]
+
   cflags = [
     "-O2",
     "-fPIC",
     "-Wall",
     "-fexceptions",
+    "-fstack-protector-strong",
   ]
   cflags_cc = cflags
 
+  ldflags = [
+    "-fpie",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+  ]
+
   part_name = "distributed_hardware_fwk"
   subsystem_name = "distributedhardware"
 }
diff --git a/av_transport/av_trans_handler/histreamer_ability_querier/BUILD.gn b/av_transport/av_trans_handler/histreamer_ability_querier/BUILD.gn
index 2abf00976a356210eb792c9436a514aef447ca25..cf00397a6f5a6a519a753b58502e5a469187ca89 100644
--- a/av_transport/av_trans_handler/histreamer_ability_querier/BUILD.gn
+++ b/av_transport/av_trans_handler/histreamer_ability_querier/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2023-2024 Huawei Device Co., Ltd.
+# Copyright (c) 2023-2025 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -72,10 +72,17 @@ ohos_shared_library("histreamer_ability_querier") {
     "-fexceptions",
     "-Wno-unused-but-set-variable",
     "-Wno-format",
+    "-fstack-protector-strong",
   ]
 
   cflags_cc = cflags
 
+  ldflags = [
+    "-fpie",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+  ]
+
   remove_configs = [
     "//build/config/compiler:no_rtti",
     "//build/config/compiler:no_exceptions",
diff --git a/av_transport/framework/BUILD.gn b/av_transport/framework/BUILD.gn
index e9285316fed92473db541f310d3beef9d5817ef2..c4672acfd16b107865b49405e47578d504e87dba 100644
--- a/av_transport/framework/BUILD.gn
+++ b/av_transport/framework/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2024 Huawei Device Co., Ltd.
+# Copyright (c) 2024-2025 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -85,9 +85,16 @@ ohos_shared_library("distributed_av_pipeline_fwk") {
     "-O2",
     "-Wall",
     "-Wno-c++20-extensions",
+    "-fstack-protector-strong",
   ]
   cflags_cc = cflags
 
+  ldflags = [
+    "-fpie",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+  ]
+
   part_name = "distributed_hardware_fwk"
   subsystem_name = "distributedhardware"
 }
diff --git a/interfaces/inner_kits/BUILD.gn b/interfaces/inner_kits/BUILD.gn
index 998f56396bb16070ffd770ddc0b06659f2fea866..cf6108c5704657b599b5cb38633e8165d66f1517 100644
--- a/interfaces/inner_kits/BUILD.gn
+++ b/interfaces/inner_kits/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2022-2024 Huawei Device Co., Ltd.
+# Copyright (c) 2022-2025 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -90,6 +90,12 @@ ohos_shared_library("libdhfwk_sdk") {
     "-O2",
   ]
 
+  ldflags = [
+    "-fpie",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+  ]
+
   subsystem_name = "distributedhardware"
 
   part_name = "distributed_hardware_fwk"
diff --git a/interfaces/kits/napi/BUILD.gn b/interfaces/kits/napi/BUILD.gn
index 55425a977a158121be905c7c4328ac45e09bf189..e5ad6f8d9921e5efdd9427c1786178b8ffb4d62f 100644
--- a/interfaces/kits/napi/BUILD.gn
+++ b/interfaces/kits/napi/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2023-2024 Huawei Device Co., Ltd.
+# Copyright (c) 2023-2025 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -15,6 +15,13 @@ import("//build/ohos.gni")
 import("../../../distributedhardwarefwk.gni")
 
 ohos_shared_library("hardwaremanager") {
+  sanitize = {
+    boundary_sanitize = true
+    integer_overflow = true
+    ubsan = true
+  }
+  branch_protector_ret = "pac_ret"
+
   include_dirs = [
     "include",
     "${common_path}/log/include",
@@ -52,6 +59,12 @@ ohos_shared_library("hardwaremanager") {
 
   cflags_cc = cflags
 
+  ldflags = [
+    "-fpie",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+  ]
+
   external_deps = [
     "access_token:libtokenid_sdk",
     "bundle_framework:appexecfwk_base",
diff --git a/services/distributedhardwarefwkservice/BUILD.gn b/services/distributedhardwarefwkservice/BUILD.gn
index ea3349e6c91061ec1828e132447fee9cfa8017ed..b3b10248826c76e97230e7fc53f7f0620a5fac2e 100644
--- a/services/distributedhardwarefwkservice/BUILD.gn
+++ b/services/distributedhardwarefwkservice/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021-2024 Huawei Device Co., Ltd.
+# Copyright (c) 2021-2025 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -129,6 +129,12 @@ ohos_shared_library("distributedhardwarefwksvr") {
 
   cflags_cc = cflags
 
+  ldflags = [
+    "-fpie",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+  ]
+
   if (distributed_hardware_fwk_low_latency) {
     defines += [ "DHARDWARE_LOW_LATENCY" ]
   }
diff --git a/utils/BUILD.gn b/utils/BUILD.gn
index 3a30e04bed50c72ce3c650a2c4b58a970bda04e2..4ffdda813305fa4a1ebd019f2380dadf515a09b2 100644
--- a/utils/BUILD.gn
+++ b/utils/BUILD.gn
@@ -1,4 +1,4 @@
-# Copyright (c) 2021-2024 Huawei Device Co., Ltd.
+# Copyright (c) 2021-2025 Huawei Device Co., Ltd.
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
 # You may obtain a copy of the License at
@@ -66,6 +66,12 @@ ohos_shared_library("distributedhardwareutils") {
 
   cflags_cc = cflags
 
+  ldflags = [
+    "-fpie",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+  ]
+
   external_deps = [
     "cJSON:cjson",
     "c_utils:utils",