diff --git a/pkgs/tools/security/mbox/default.nix b/pkgs/tools/security/mbox/default.nix
deleted file mode 100644
index a39d226aac57..000000000000
--- a/pkgs/tools/security/mbox/default.nix
+++ /dev/null
@@ -1,39 +0,0 @@
-{ lib, stdenv, fetchFromGitHub, openssl, which }:
-
-stdenv.mkDerivation {
-  pname = "mbox";
-  version = "unstable-2014-05-26";
-
-  src = fetchFromGitHub {
-    owner = "tsgates";
-    repo = "mbox";
-    rev = "a131424b6cb577e1c916bd0e8ffb2084a5f73048";
-    sha256 = "06qggqxnzcxnc34m6sbafxwr2p64x65m9zm5wp7pwyarcckhh2hd";
-  };
-
-  buildInputs = [ openssl which ];
-
-  preConfigure = ''
-    cd src
-    cp {.,}configsbox.h
-  '';
-
-  doCheck = true;
-  checkPhase = ''
-    rm tests/test-*vim.sh tests/test-pip.sh
-
-    patchShebangs ./; dontPatchShebags=1
-    sed -i 's|^/bin/||' tests/test-fileops.sh
-
-    ./testall.sh
-  '';
-
-  meta = with lib;    {
-    description = "Lightweight sandboxing mechanism that any user can use without special privileges";
-    homepage = "http://pdos.csail.mit.edu/mbox/";
-    maintainers = with maintainers; [ ehmry ];
-    license = licenses.bsd3;
-    platforms = [ "x86_64-linux" ];
-    broken = true;
-  };
-}
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index 69ee72a90323..a8213508067d 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -590,6 +590,7 @@ mapAliases ({
   matrique = spectral; # Added 2020-01-27
   matrix-recorder = throw "matrix-recorder has been removed due to being unmaintained"; # Added 2023-05-21
   maui-nota = libsForQt5.mauiPackages.nota; # added 2022-05-17
+  mbox = throw "'mobx' has been removed, as it was broken and unmaintained"; # Added 2023-12-21
   mcomix3 = mcomix; # Added 2022-06-05
   meme = meme-image-generator; # Added 2021-04-21
   mess = throw "'mess' has been renamed to/replaced by 'mame'"; # Converted to throw 2023-09-10
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 3609d5da2ac2..4a5a6f9df840 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -10838,8 +10838,6 @@ with pkgs;
 
   mb2md = callPackage ../tools/text/mb2md { };
 
-  mbox = callPackage ../tools/security/mbox { };
-
   mbuffer = callPackage ../tools/misc/mbuffer { };
 
   mdsh = callPackage ../development/tools/documentation/mdsh { };