BitDefender has a good track record for detecting and preventing viruses and other forms of malware. BitDefender Antivirus for Mac will help keep your Macintosh system free from Mac malware and will help prevent the transfer of Windows-targeting malware as well. 
Stop Viruses and Spyware Cold
Proactive antivirus software for Mac stops new viruses and malware that other products miss.
Block ID Theft Attacks
Shut-out websites that attempt to steal your credit card data or other personal information.
Schedule Scans Around Your Schedule
Plan ahead and schedule your full system/drive scans in the off hours, when your Mac is not in use.
Quarantine Suspicious Documents
Move infected or suspected files to a special “safe zone”, before forwarding them to the Bitdefender Antivirus Lab for further investigation.
Familiar Mac Interface
Use the Bitdefender dock icon to get access to the most common tasks, or drag & drop files on it for quick scanning.
Always Up-To-Date
Innovative Mac antivirus software continuously and automatically checks our global database to keep your Mac safeguarded against the latest strains of online threats.
Find Support Fast
Enjoy free technical assistance for the entire duration of your software license.
Author’s program description
Bitdefender AntiVirus for Mac [1-Mac]
Full price: €39.95
OFF price: €17.95
Save: 55% = €22.00
Bitdefender AntiVirus for Mac [3-Mac]
Full price: €49.95
OFF price: €22.95
Save: 54% = €27.00