diff --git a/pkgs/applications/misc/simplenote/default.nix b/pkgs/applications/misc/simplenote/default.nix
deleted file mode 100644
index 82008de9576b..000000000000
--- a/pkgs/applications/misc/simplenote/default.nix
+++ /dev/null
@@ -1,110 +0,0 @@
-{ autoPatchelfHook
-, dpkg
-, fetchurl
-, makeDesktopItem
-, makeWrapper
-, lib
-, stdenv
-, udev
-, alsa-lib
-, mesa
-, nss
-, nspr
-, systemd
-, wrapGAppsHook
-, xorg
-}:
-
-let
-  inherit (stdenv.hostPlatform) system;
-
-  throwSystem = throw "Unsupported system: ${system}";
-
-  pname = "simplenote";
-
-  version = "2.9.0";
-
-  sha256 = {
-    x86_64-linux = "sha256-uwd9fYqZepJ/BBttprqkJhswqMepGsHDTd5Md9gjI68=";
-  }.${system} or throwSystem;
-
-  meta = with lib; {
-    description = "The simplest way to keep notes";
-    homepage = "https://github.com/Automattic/simplenote-electron";
-    license = licenses.gpl2;
-    sourceProvenance = with sourceTypes; [ binaryNativeCode ];
-    maintainers = with maintainers; [
-      kiwi
-    ];
-    platforms = [
-      "x86_64-linux"
-    ];
-  };
-
-  linux = stdenv.mkDerivation rec {
-    inherit pname version meta;
-
-    src = fetchurl {
-      url = "https://github.com/Automattic/simplenote-electron/releases/download/v${version}/Simplenote-linux-${version}-amd64.deb";
-      inherit sha256;
-    };
-
-    desktopItem = makeDesktopItem {
-      categories = [ "Development" ];
-      comment = "Simplenote for Linux";
-      desktopName = "Simplenote";
-      exec = "simplenote %U";
-      icon = "simplenote";
-      name = "simplenote";
-      startupNotify = true;
-    };
-
-    dontBuild = true;
-    dontConfigure = true;
-    dontPatchELF = true;
-    dontWrapGApps = true;
-
-    # TODO: migrate off autoPatchelfHook and use nixpkgs' electron
-    nativeBuildInputs = [
-      autoPatchelfHook
-      dpkg
-      makeWrapper
-      wrapGAppsHook
-    ];
-
-    buildInputs = [
-      alsa-lib
-      mesa
-      xorg.libXScrnSaver
-      xorg.libXtst
-      nss
-      nspr
-      stdenv.cc.cc
-      systemd
-    ];
-
-    unpackPhase = "dpkg-deb -x $src .";
-
-    installPhase = ''
-      mkdir -p "$out/bin"
-      cp -R "opt" "$out"
-      cp -R "usr/share" "$out/share"
-      chmod -R g-w "$out"
-
-      mkdir -p "$out/share/applications"
-      cp "${desktopItem}/share/applications/"* "$out/share/applications"
-    '';
-
-    runtimeDependencies = [
-      (lib.getLib udev)
-    ];
-
-    postFixup = ''
-      makeWrapper $out/opt/Simplenote/simplenote $out/bin/simplenote \
-        --prefix LD_LIBRARY_PATH : "${lib.makeLibraryPath [ stdenv.cc.cc ] }" \
-        "''${gappsWrapperArgs[@]}"
-    '';
-  };
-
-in
-linux
diff --git a/pkgs/top-level/aliases.nix b/pkgs/top-level/aliases.nix
index d5e2401ee7e1..1d7edca089f6 100644
--- a/pkgs/top-level/aliases.nix
+++ b/pkgs/top-level/aliases.nix
@@ -798,6 +798,7 @@ mapAliases ({
   shhgit = throw "shhgit is broken and is no longer maintained. See https://github.com/eth0izzle/shhgit#-shhgit-is-no-longer-maintained-" ; # Added 2023-08-08
   shipyard = jumppad; # Added 2023-06-06
   signumone-ks = throw "signumone-ks has been removed from nixpkgs because the developers stopped offering the binaries"; # Added 2023-08-17
+  simplenote = throw "'simplenote' has been removed because it is no longer maintained and insecure"; # Added 2023-10-09
   slack-dark = slack; # Added 2020-03-27
   slmenu = throw "slmenu has been removed (upstream is gone)"; # Added 2023-04-06
   slurm-llnl = slurm; # renamed July 2017
diff --git a/pkgs/top-level/all-packages.nix b/pkgs/top-level/all-packages.nix
index 1eaf318091a0..53465f6dfed0 100644
--- a/pkgs/top-level/all-packages.nix
+++ b/pkgs/top-level/all-packages.nix
@@ -41661,8 +41661,6 @@ with pkgs;
 
   fpm2 = callPackage ../tools/security/fpm2 { };
 
-  simplenote = callPackage ../applications/misc/simplenote { };
-
   hy = with python3Packages; toPythonApplication hy;
 
   wmic-bin = callPackage ../servers/monitoring/plugins/wmic-bin.nix { };