On top of great protection, Bitdefender Antivirus for Mac includes a vulnerability scanner and a VPN. This ensures you don't accidentally send a threat to family or friends using a PC. Bitdefender also recognized and stopped more Windows threats than other Mac antivirus programs. It also recognized traits in new threats, known as zero-day malware, that haven't been identified yet and stops them. This is because Bitdefender taps into several malware databases to keep tabs on what's out there and block it quickly. Plus, most threats are instantly scrubbed without ever hitting the quarantine folder. Bitdefender is the best Mac antivirus because it does a great job stopping malware before it has a chance even to start downloading.