Install ZoneAlarm for Mac ZoneAlarm for Mac analyzes all suspicious activities on your PC. It detects Ransomware attacks, blocks them and immediately restores any encrypted files. Also includes Anti-Phishing, Threat Extraction and Threat Emulation. Installation on Mac: Click the link below to download your software.DOWNLOAD Locate the downloaded ZoneAlarm .pkg file and double-click to launch the installer. The ZoneAlarm installation window will appear. Click Continue. Click Continue, then click Agree to accept the End User License Agreement. Click Install Enter your Mac password when prompted, then click Install Software. Click OK when prompted to allow folder access. The installation process may take a few minutes. Once completed, click Close to exit the installer. You may choose to click Move to Trash to delete the installer file.