diff --git a/dfx_utils/BUILD.gn b/dfx_utils/BUILD.gn
index 9a03a9d5e97cb89035db8a168908e403eabb4928..5ed35ceae89a27b7eac26564ce591088ec2e01db 100755
--- a/dfx_utils/BUILD.gn
+++ b/dfx_utils/BUILD.gn
@@ -45,6 +45,12 @@ ohos_shared_library("libdinput_dfx_utils") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [ "${utils_path}:libdinput_utils" ]
 
   external_deps = [
@@ -58,7 +64,12 @@ ohos_shared_library("libdinput_dfx_utils") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/inputdevicehandler/BUILD.gn b/inputdevicehandler/BUILD.gn
index 18db9b3a2d54d8a4f8cec549e28168e057f904c8..5c36f6a5c291ddba11d11f1da6005fbd6ea56181 100755
--- a/inputdevicehandler/BUILD.gn
+++ b/inputdevicehandler/BUILD.gn
@@ -45,6 +45,12 @@ ohos_shared_library("libdinput_handler") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${services_state_path}:libdinput_sink_state",
     "${utils_path}:libdinput_utils",
@@ -66,7 +72,12 @@ ohos_shared_library("libdinput_handler") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/interfaces/inner_kits/BUILD.gn b/interfaces/inner_kits/BUILD.gn
index 6240ed4981bd0c02811be1741201c2db8d45ab19..bcbcb96146ffbbc488738ad87f5ede788e433964 100644
--- a/interfaces/inner_kits/BUILD.gn
+++ b/interfaces/inner_kits/BUILD.gn
@@ -95,6 +95,12 @@ ohos_shared_library("libdinput_sdk") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   external_deps = [
     "access_token:libaccesstoken_sdk",
     "access_token:libtokenid_sdk",
@@ -109,7 +115,12 @@ ohos_shared_library("libdinput_sdk") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/sink/inputcollector/BUILD.gn b/services/sink/inputcollector/BUILD.gn
index 37115311d9203016206cba760f4e6228299dbfce..57cb89159092e389a0de4cb4d8c531a3a6f0b4ff 100755
--- a/services/sink/inputcollector/BUILD.gn
+++ b/services/sink/inputcollector/BUILD.gn
@@ -44,6 +44,12 @@ ohos_shared_library("libdinput_collector") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${services_state_path}:libdinput_sink_state",
     "${utils_path}:libdinput_utils",
@@ -65,7 +71,12 @@ ohos_shared_library("libdinput_collector") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/sink/sinkmanager/BUILD.gn b/services/sink/sinkmanager/BUILD.gn
index 806b1bdfc98e5b67ea82ffdb77b7333b9430aecc..0c659407b4ba33b0f73d6c9a6e0bd8a177c1526d 100644
--- a/services/sink/sinkmanager/BUILD.gn
+++ b/services/sink/sinkmanager/BUILD.gn
@@ -55,6 +55,12 @@ ohos_shared_library("libdinput_sink") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${distributedinput_path}/services/state:libdinput_sink_state",
@@ -88,7 +94,12 @@ ohos_shared_library("libdinput_sink") {
     "window_manager:libdm",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/sink/transport/BUILD.gn b/services/sink/transport/BUILD.gn
index 05d4afa7ab345b34dcb801723265bea31c9dac5e..d82ddc2bc28aa3dc11fa774e787e390ce4f0bf5a 100644
--- a/services/sink/transport/BUILD.gn
+++ b/services/sink/transport/BUILD.gn
@@ -46,6 +46,12 @@ ohos_shared_library("libdinput_sink_trans") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${distributedinput_path}/services/transportbase:libdinput_trans_base",
@@ -70,7 +76,12 @@ ohos_shared_library("libdinput_sink_trans") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/source/inputinject/BUILD.gn b/services/source/inputinject/BUILD.gn
index 91829be7d54a6ac893f1ba6ba39fe5c0f84f9682..0c84f71d0bdcd6a83d7951a10b5dc3e7ad10296c 100644
--- a/services/source/inputinject/BUILD.gn
+++ b/services/source/inputinject/BUILD.gn
@@ -49,6 +49,12 @@ ohos_shared_library("libdinput_inject") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${services_state_path}:libdinput_sink_state",
@@ -72,7 +78,12 @@ ohos_shared_library("libdinput_inject") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/source/sourcemanager/BUILD.gn b/services/source/sourcemanager/BUILD.gn
index 11f8a32537335a0ff3028f7b3dfc8e17fdbeda02..aa02846825ffc0a613edd4d3defea3cb90b6e540 100644
--- a/services/source/sourcemanager/BUILD.gn
+++ b/services/source/sourcemanager/BUILD.gn
@@ -92,6 +92,12 @@ ohos_shared_library("libdinput_source") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${distributedinput_path}/services/transportbase:libdinput_trans_base",
@@ -123,7 +129,12 @@ ohos_shared_library("libdinput_source") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/source/transport/BUILD.gn b/services/source/transport/BUILD.gn
index 874649db056fe41972e9bebea69ee80b86db5e74..f5431b6bf30e638237e5262ba100d8ba09cdc1bf 100755
--- a/services/source/transport/BUILD.gn
+++ b/services/source/transport/BUILD.gn
@@ -45,6 +45,12 @@ ohos_shared_library("libdinput_source_trans") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${distributedinput_path}/services/transportbase:libdinput_trans_base",
@@ -68,7 +74,12 @@ ohos_shared_library("libdinput_source_trans") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/state/BUILD.gn b/services/state/BUILD.gn
index 8b01a01fa44fe1a58be841f3a36bacddb7429be6..20e77dfd9a7f2ef5a5015ecb68e492d5733f8ffc 100644
--- a/services/state/BUILD.gn
+++ b/services/state/BUILD.gn
@@ -49,6 +49,12 @@ ohos_shared_library("libdinput_sink_state") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${services_sink_path}/transport:libdinput_sink_trans",
@@ -70,7 +76,12 @@ ohos_shared_library("libdinput_sink_state") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/services/transportbase/BUILD.gn b/services/transportbase/BUILD.gn
index 439a74d5742ad8e18cad3547161467e361a6c84a..622f14e736ffdda4bdf8824205a4e43b434c667b 100644
--- a/services/transportbase/BUILD.gn
+++ b/services/transportbase/BUILD.gn
@@ -44,6 +44,12 @@ ohos_shared_library("libdinput_trans_base") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${utils_path}:libdinput_utils",
@@ -66,7 +72,12 @@ ohos_shared_library("libdinput_trans_base") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/sinkhandler/BUILD.gn b/sinkhandler/BUILD.gn
index a49104dee22a4d0a1ac63561596a3b9e8425d65b..b9a2c76946e8abfe8d815cb747becfb6ab6796de 100644
--- a/sinkhandler/BUILD.gn
+++ b/sinkhandler/BUILD.gn
@@ -50,6 +50,12 @@ ohos_shared_library("libdinput_sink_handler") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${innerkits_path}:libdinput_sdk",
@@ -68,7 +74,12 @@ ohos_shared_library("libdinput_sink_handler") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/sourcehandler/BUILD.gn b/sourcehandler/BUILD.gn
index d054e1d67eff2db49a12b3b0779b31de92094c4e..1ba3d8803ee9c891598e01c397c38c0666fbcb67 100644
--- a/sourcehandler/BUILD.gn
+++ b/sourcehandler/BUILD.gn
@@ -52,6 +52,12 @@ ohos_shared_library("libdinput_source_handler") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
+
   deps = [
     "${dfx_utils_path}:libdinput_dfx_utils",
     "${innerkits_path}:libdinput_sdk",
@@ -71,7 +77,12 @@ ohos_shared_library("libdinput_source_handler") {
     "samgr:samgr_proxy",
   ]
 
-  cflags_cc = [ "-DHILOG_ENABLE" ]
+  cflags_cc = [
+    "-DHILOG_ENABLE",
+    "-fstack-protector-strong",
+    "-D_FORTIFY_SOURCE=2",
+    "-O2",
+  ]
 
   subsystem_name = "distributedhardware"
 
diff --git a/utils/BUILD.gn b/utils/BUILD.gn
index 085b405ae3ddb696a3f15e79041b4ff082bc8569..af7c74669168056a68733ed8aed26c66a52258e0 100644
--- a/utils/BUILD.gn
+++ b/utils/BUILD.gn
@@ -44,6 +44,13 @@ ohos_shared_library("libdinput_utils") {
     "LOG_DOMAIN=0xD004120",
   ]
 
+  cflags = [
+    "-O2",
+    "-D_FORTIFY_SOURCE=2",
+  ]
+
+  cflags_cc = cflags
+
   external_deps = [
     "c_utils:utils",
     "distributed_hardware_fwk:distributed_av_receiver",