diff --git a/CMakeLists.txt b/CMakeLists.txt
index 8440be79..bd1480a5 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -36,6 +36,14 @@ SET(CMAKE_AUTOMOC ON)
 SET(CMAKE_AUTORCC ON)
 SET(CMAKE_VERBOSE_MAKEFILE ON)
 
+if(CMAKE_BUILD_TYPE STREQUAL "Release")
+    message("Enable build hardening.")
+
+    set(HARDENING_FLAGS "-Wdate-time -D_FORTIFY_SOURCE=2 -g -O2 -ffile-prefix-map=${CMAKE_SOURCE_DIR}=. -fstack-protector-strong -fstack-clash-protection -Wformat -Werror=format-security")
+    set(CMAKE_CXX_FLAGS "${CMAKE_CXX_FLAGS} ${HARDENING_FLAGS}")
+    set(CMAKE_C_FLAGS "${CMAKE_C_FLAGS} ${HARDENING_FLAGS}")
+    set(CMAKE_EXE_LINKER_FLAGS "${CMAKE_EXE_LINKER_FLAGS} -Wl,-z,relro -Wl,-z,now")
+endif()
 
 find_package(QT NAMES Qt6 Qt5 REQUIRED COMPONENTS Core)