diff --git a/pkgs/development/python-modules/jproperties/default.nix b/pkgs/development/python-modules/jproperties/default.nix
new file mode 100644
index 000000000000..0089e153f4f3
--- /dev/null
+++ b/pkgs/development/python-modules/jproperties/default.nix
@@ -0,0 +1,59 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+, six
+, pytest-datadir
+, setuptools-scm
+}:
+
+buildPythonPackage rec {
+  pname = "jproperties";
+  version = "2.1.1";
+  format = "setuptools";
+
+  src = fetchFromGitHub {
+    owner = "Tblue";
+    repo = "python-jproperties";
+    rev = "v${version}";
+    sha256 = "sha256-O+ALeGHMNjW1dc9IRyLzO81k8DW2vbGjuZqXxgrhYjo=";
+  };
+
+  SETUPTOOLS_SCM_PRETEND_VERSION = version;
+
+  nativeBuildInputs = [
+    setuptools-scm
+  ];
+
+  propagatedBuildInputs = [
+    six
+  ];
+
+  checkInputs = [
+    pytest-datadir
+    pytestCheckHook
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace "setuptools_scm ~= 3.3" "setuptools_scm"
+    substituteInPlace pytest.ini \
+      --replace "--cov=jproperties --cov-report=term --cov-report=html --cov-branch" ""
+  '';
+
+  disabledTestPaths = [
+    # TypeError: 'PosixPath' object...
+    "tests/test_simple_utf8.py"
+  ];
+
+  pythonImportsCheck = [
+    "jproperties"
+  ];
+
+  meta = with lib; {
+    description = "Java Property file parser and writer for Python";
+    homepage = "https://github.com/Tblue/python-jproperties";
+    license = with licenses; [ bsd3 ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/development/python-modules/luhn/default.nix b/pkgs/development/python-modules/luhn/default.nix
new file mode 100644
index 000000000000..09ab90a3b177
--- /dev/null
+++ b/pkgs/development/python-modules/luhn/default.nix
@@ -0,0 +1,36 @@
+{ lib
+, buildPythonPackage
+, fetchFromGitHub
+, pytestCheckHook
+}:
+
+buildPythonPackage rec {
+  pname = "luhn";
+  version = "0.2.0";
+
+  src = fetchFromGitHub {
+    owner = "mmcloughlin";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-ZifaCjOVhWdXuzi5n6V+6eVN5vrEHKgUdpSOXoMyR18=";
+  };
+
+  checkInputs = [
+    pytestCheckHook
+  ];
+
+  pytestFlagsArray = [
+    "test.py"
+  ];
+
+  pythonImportsCheck = [
+    "luhn"
+  ];
+
+  meta = with lib; {
+    description = "Python module for generate and verify Luhn check digits";
+    homepage = "https://github.com/mmcloughlin/luhn";
+    license = with licenses; [ mit ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/tools/security/whispers/default.nix b/pkgs/tools/security/whispers/default.nix
new file mode 100644
index 000000000000..07c1f1e707e4
--- /dev/null
+++ b/pkgs/tools/security/whispers/default.nix
@@ -0,0 +1,52 @@
+{ lib
+, fetchFromGitHub
+, python3
+}:
+
+python3.pkgs.buildPythonApplication rec {
+  pname = "whispers";
+  version = "1.5.3";
+
+  src = fetchFromGitHub {
+    owner = "Skyscanner";
+    repo = pname;
+    rev = version;
+    sha256 = "sha256-jruUGyoZCyMu015QKtlvfx5WRMfxo/eYUue9wUIWb6o=";
+  };
+
+  propagatedBuildInputs = with python3.pkgs; [
+    astroid
+    beautifulsoup4
+    jproperties
+    luhn
+    lxml
+    python-Levenshtein
+    pyyaml
+  ];
+
+  checkInputs = with python3.pkgs; [
+    pytest-mock
+    pytestCheckHook
+  ];
+
+  postPatch = ''
+    substituteInPlace setup.py \
+      --replace '"pytest-runner"' ""
+  '';
+
+  preCheck = ''
+    # Some tests need the binary available in PATH
+    export PATH=$out/bin:$PATH
+  '';
+
+  pythonImportsCheck = [
+    "whispers"
+  ];
+
+  meta = with lib; {
+    description = "Tool to identify hardcoded secrets in static structured text";
+    homepage = "https://github.com/Skyscanner/whispers";
+    license = with licenses; [ asl20 ];
+    maintainers = with maintainers; [ fab ];
+  };
+}
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index d1d649aaf8c2..e6a7a952d3a0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -29161,6 +29161,8 @@ with pkgs;
 
   wafw00f = python3Packages.callPackage ../tools/security/wafw00f { };
 
+  whispers = callPackage ../tools/security/whispers { };
+
   waon = callPackage ../applications/audio/waon { };
 
   w3m = callPackage ../applications/networking/browsers/w3m { };
diff --git a/pkgs/top-level/python-packages.nix b/pkgs/top-level/python-packages.nix
index 16587d9c8f36..d7c600001af8 100644
--- a/pkgs/top-level/python-packages.nix
+++ b/pkgs/top-level/python-packages.nix
@@ -4059,6 +4059,8 @@ in {
     inherit (self) systemd pytest;
   };
 
+  jproperties = callPackage ../development/python-modules/jproperties { };
+
   jpylyzer = callPackage ../development/python-modules/jpylyzer { };
 
   JPype1 = callPackage ../development/python-modules/JPype1 { };
@@ -4619,6 +4621,8 @@ in {
 
   luftdaten = callPackage ../development/python-modules/luftdaten { };
 
+  luhn = callPackage ../development/python-modules/luhn { };
+
   luxor = callPackage ../development/python-modules/luxor { };
 
   luxtronik = callPackage ../development/python-modules/luxtronik { };