Mac OS X is considered one of the most secure operating systems available.
Download, Install or Update Avast Free Mac Security! Download Avast Mac Security for macOS and protect your Macintosh with the best antivirus & security app. Web Shield and Mail Shield combine to check the vast majority of incoming data from the Internet, while File Shield scans all programs stored and executed from your hard drive.
Avast Security for Mac offers three shields, on-demand scanning and WebRep clients which are automatically (optionally) installed to Safari, Chrome and Firefox browsers.
