Microsoft Defender SmartScreen prevented an unrecognized app from starting.
Continue from the security warning
Click “More info,” verify the publisher and filename, then click “Run anyway.”
We automatically detect your system and provide the latest compatible installer.
Fetching the latest release
Your system may display a security warning the first time you open the installer. This is a standard precaution for downloaded files.
If “Windows protected your PC” appears after opening the installer, use either method below to continue.
Microsoft Defender SmartScreen prevented an unrecognized app from starting.
Click “More info,” verify the publisher and filename, then click “Run anyway.”
Right-click the installer, select “Properties,” check “Unblock,” click “OK,” and open it again.
If macOS blocks the installer, allow it from the Privacy & Security settings.
Click the Apple menu in the top-left corner and select “System Settings.”
Select “Privacy & Security” in the sidebar, then scroll down to the Security section.
“Sigma” was blocked because it is not from an identified developer.
If a lock icon appears, click it and enter your administrator password. Then click “Open Anyway,” confirm the prompt, and relaunch Sigma.