Installing Kaspersky Internet Security for Mac is one good way to protect your computer from viruses, Trojans, hackers, rootkits, ransomware and many other threats.

Editor’s Note: Since our last update, new features and tools have been added to Sophos' antivirus and internet security programs.

Comodo Antivirus for Mac had a little trouble stopping viruses as they were downloading in our tests, only stopping 76 percent of them. The rest successfully saved themselves to our Mac computer.

Avast Security for Mac Premium is a step up from its Essential version, though both offer excellent internet security for your Mac desktops and laptops. The Premium solution, however, comes with a few extra tools like a VPN, system scanner and password manager.

ESET Cyber Security Pro didn’t do as well in our in-house detection tests as it did in other independent laboratories.

Trend Micro Antivirus for Mac earned top scores for detecting and protecting against Mac malware and received and high score for detecting Windows threats on Mac computers.

The virus protection portion of Trend Micro Antivirus for Mac earned a perfect score for identifying and blocking every Mac malware threat we used in our tests. And it did a good job blocking Windows malware, too, so you don’t accidentally send infected files to Windows computers.

We had some trouble getting ESET Cyber Security to work correctly during our testing of the best Mac antivirus software. As a result, ESET only detected 71 percent of the malware we subjected it to during our in-house tests. This is substantially lower than most Mac antivirus programs we reviewed.

F-Secure SAFE does a good job of recognizing and removing Windows viruses on Mac devices so you don’t accidentally pass them along to your PC-using friends and family through email or file sharing.

 AVG AntiVirus for Mac is our pick for the best free antivirus for Mac. It performed perfectly in our in-house tests, protecting against all 165 Mac threats we exposed it to. This is significantly more than other free Mac antivirus programs that struggled to detect that many threats.

This Mac antivirus scanner took longer to install than other applications on our comparison. We had to initiate the Intego Mac Security X9 download process three times before it was successfully installed, but once it was, it immediately began scanning for threats on our test Mac.

Norton Security Standard is compatible with both Mac and Windows computers and laptops, and it works on iOS and Android cellphones and tablets.

Panda Security struggled a bit during our malware detection tests of the best antivirus software. It detected 97 percent of the 300-plus malware samples we used, but moving the malware to quarantine took several steps.

Avira Free Security Suite is our choice for the best free antivirus solution. It did better detecting and blocking malware than other free antivirus programs we tested, catching 98 percent of all threats.

eScan Anti-Virus doesn’t stop you from visiting malicious websites.

Kaspersky has had its fair share of trouble, butting heads with the U.S. government that has accused Kaspersky of using its software to spy on federal agencies and workers on behalf of the Russian government.

AVG Antivirus scored well in our lab tests for malware protection, though it still struggled to stop several viruses, Trojans and rootkits before they started downloading to our computers.

File Encryption XP is barebones encryption software that is fast, but it complicates the encryption process a bit with some extra steps compared to other programs.

CryptoForge version 5.2.1 has the strongest and most secure encryption algorithm out there, 256-bit key AES, making it a secure file encryption solution. This software is simple to use, though it does lack in security tools.

Advanced Encryption Package Pro (AEP) offers the strongest encryption key available.

One of the best features of Renee File Protector is it helps you recover your passwords so you aren’t ever completely locked out from accessing your encrypted files.

Espionage 3 is good file encryption software and one of only two solutions we reviewed that is compatible with Mac computers and laptops – the other being Concealer.

Kruptos 2 Professional data encryption software lets you choose to secure all your files with a single, master password, or create individual keys for each file. We encrypted 63 files that totaled 128MB in under 30 seconds.

We’ve tested and reviewed SensiGuard encryption software for years, and it isn’t difficult to figure out.