diff --git a/tosa_converter_for_tflite/BUILD b/tosa_converter_for_tflite/BUILD
index aafd70c3163506e57f8fc993143408921fb40ca5..fe9abfbffb24464f4dc1d75a7806d24669090a95 100644
--- a/tosa_converter_for_tflite/BUILD
+++ b/tosa_converter_for_tflite/BUILD
@@ -6,6 +6,51 @@
 
 load("@pybind11_bazel//:build_defs.bzl", "pybind_extension")
 
+# -----------------------------------------------------------------------------
+# Hardened compile flags
+# -----------------------------------------------------------------------------
+TCFT_HARDENED_COPTS = [
+    # optimizations and warnings
+    "-Wall",
+    "-Wformat",
+    "-Wformat=2",
+    "-Wconversion",
+    "-Wimplicit-fallthrough",
+    "-Werror=format-security",
+
+    # fortify
+    "-U_FORTIFY_SOURCE",
+    "-D_FORTIFY_SOURCE=3",
+    "-D_GLIBCXX_ASSERTIONS",
+
+    # strict arrays
+    "-fstrict-flex-arrays=3",
+
+    # stack protection
+    "-fstack-clash-protection",
+    "-fstack-protector-strong",
+
+    # overflow/null-pointer checks
+    "-fno-delete-null-pointer-checks",
+    "-fno-strict-overflow",
+    "-fno-strict-aliasing",
+    "-ftrivial-auto-var-init=zero",
+
+    # pthreads exception support
+    "-fexceptions",
+]
+
+# -----------------------------------------------------------------------------
+# Hardened link flags
+# -----------------------------------------------------------------------------
+TCFT_HARDENED_LINKOPTS = [
+    "-Wl,-z,noexecstack",
+    "-Wl,-z,relro",
+    "-Wl,-z,now",
+    "-Wl,--as-needed",
+    "-Wl,--no-copy-dt-needed-entries",
+]
+
 cc_library(
     name = "tosa_converter_for_tflite_lib",
     srcs = ["tosa_converter_for_tflite.cc", "override_tflite_input_shape.cc"],
@@ -14,6 +59,7 @@ cc_library(
         "@org_tensorflow//tensorflow/compiler/mlir/lite:flatbuffer_translate_lib",
         "@org_tensorflow//tensorflow/compiler/mlir/tosa:tfl_passes",
     ],
+    copts = TCFT_HARDENED_COPTS,
 )
 
 pybind_extension(
@@ -24,6 +70,8 @@ pybind_extension(
     deps = [
         ":tosa_converter_for_tflite_lib",
     ],
+    copts = TCFT_HARDENED_COPTS,
+    linkopts = TCFT_HARDENED_LINKOPTS,
 )
 
 py_library(