diff --git a/Casks/w/wd-security.rb b/Casks/w/wd-security.rb
new file mode 100644
index 000000000000..ee15bdbff62b
--- /dev/null
+++ b/Casks/w/wd-security.rb
@@ -0,0 +1,38 @@
+cask "wd-security" do
+  version "2.1.2.144"
+  sha256 :no_check
+
+  url "https://downloads.wdc.com/wdapp/WD_Security_MACOS.zip",
+      verified: "downloads.wdc.com/wdapp/"
+  name "WD Security"
+  desc "Lock and unlock Western Digital external drives with hardware encryption"
+  homepage "https://support-en.wd.com/app/answers/detailweb/a_id/50696"
+
+  livecheck do
+    url "https://support-en.wd.com/app/answers/detailweb/a_id/29490"
+    regex(/Version:?\s*(\d+(?:\.\d+)+)/i)
+  end
+
+  container nested: "WD Security Installer.dmg"
+
+  installer script: {
+    # replicating #{staged_path}/installer.sh
+    executable: "#{staged_path}/exec/WD Security Installer.app/Contents/MacOS/WD Security Installer",
+    args:       ["-install", "-silent"],
+    sudo:       true,
+  }
+
+  uninstall launchctl: "com.wdc.WDPrivilegedHelper",
+            script:    {
+              # replicating #{staged_path}/installer.sh
+              executable: "#{staged_path}/exec/WD Security Installer.app/Contents/MacOS/WD Security Installer",
+              args:       ["-uninstall", "-silent"],
+              sudo:       true,
+            },
+            delete:    [
+              "/Library/LaunchDaemons/com.wdc.WDPrivilegedHelper.plist",
+              "/Library/PrivilegedHelperTools/com.wdc.WDPrivilegedHelper",
+            ]
+
+  zap trash: "~/Library/Preferences/com.wdc.branded.security.plist"
+end