It’s important to know the amount of computer resources your antivirus program consumes. The most effective software will have a little impact on the performance of your computer but still offer excellent protection against malware and viruses.

Most antivirus software providers publish comprehensive tests in PDF format. The reports provide a quick overview of the protection, performance, and usability of each suite. They also contain detailed charts and graphs that show the results of specific testing elements. The percentage of malware that is real-world and references set exposures that the program blocks, neutralises or compromises, as is the number of false positives detections of benign programs are the most important numbers to look out for.

In AV-Comparatives’ testing in June 2023, Avast Free Antivirus for Mac was the most successful in achieving the highest pass rates for blocking Mac malware and PUAs (potentially unwanted applications) and the second-highest score for Windows virus detection. It also scored highly in the full-scan, passive and quick-scan categories.

Of the paid-for programs, Bitdefender Total Security had the lowest post-installation background system impact which was followed by Kaspersky Total Security and ESET Security Cloud Free. It was the slowest for both quick-scans and full-scans. The program’s relatively light background impact could be due to the fact that it doesn’t run by default on Windows 10 and 11, as most of its rivals do.

Intego X10 had the smallest overall background and full-scan system effects yet it was able to find every single piece of malware tested. It’s not often that you find a company which solely focuses on Macs. This makes it a valuable tool for any security arsenal.