SecurityNet – Installation Guide for macOS

About Installing SecurityNet on macOS

SecurityNet is a Windows-based application. To run on macOS, it uses a Windows compatibility layer (Wine).

Because SecurityNet is distributed outside the Apple App Store, macOS will display a security warning the first time you open it.

This alert is normal and expected for all non-App Store software, and it does not indicate a problem with SecurityNet.

Simply follow the steps below to open the app safely.

Standard macOS Installation Steps

  1. 1
    Download the SecurityNet.dmg file
    Save it to your Downloads folder.
  2. 2
    Open the DMG
    If you see a window appear with the SecurityNet icon, continue.
  3. 3
    Drag SecurityNet into Applications
    This installs the app on your Mac.
  4. 4
    Launch SecurityNet
    Open Finder → Applications → double-click SecurityNet.

The macOS Security Alert 

  1. 1
    When launching SecurityNet for the first time, macOS will show a security message:
    “SecurityNet cannot be opened because the developer cannot be verified.”  
    This happens because the app is not yet verified by Apple as an identified developer.
  2. 2
    Click Cancel.
  3. 3
    Now allow SecurityNet manually:

    • Open System Settings

    • Go to Privacy & Security

    • Scroll down to find "SecurityNet was blocked from opening"

    • Click Allow Anyway

  4. 4
    Open SecurityNet again
    This time macOS will show:“macOS cannot verify the developer. Are you sure you want to open it?”
  5. 5
    Click Open
    SecurityNet will now launch normally.
  6. 6
    You only need to do this once.
    macOS will trust SecurityNet from now on.

Advanced Users / Technical Instructions 

You do not need to use Terminal unless you prefer the quick method. Most users should use the standard steps above.

If you prefer using Terminal to remove the quarantine flag, please follow this process:

  1. 1
    Quit the blocked app (it usually doesn’t fully launch).
  2. 2
    Open Terminal.
  3. 3
    Run the following command:
    xattr -d com.apple.quarantine "/Applications/SecurityNet.app"
  4. 4
    Launch SecurityNet again normally.

This removes the internet quarantine flag manually.

Optional: Running SecurityNet in Parallels Desktop (Windows VM)

If you already use Parallels Desktop on your Mac, you can run the standard Windows version of SecurityNet inside your Windows virtual machine.

This method avoids macOS security restrictions, because SecurityNet runs entirely inside Windows.

Steps

  1. Download the Windows version of SecurityNet (EXE installer).

  2. Open your Windows virtual machine in Parallels.

  3. Copy the EXE file into Windows.

  4. Install SecurityNet normally — exactly the same as on a regular PC.

Benefits

  • No macOS security prompts

  • No notarization or Gatekeeper issues

  • Works exactly like the Windows version

  • Recommended for tech-savvy users already running a VM

Support

If you need help installing or using SecurityNet, contact:
support@securitynet.global