Antivirus

Norton 360: Mobile Security provides excellent malware and privacy defense but it can be expensive and lacks anti-theft features.

Norton 360 Standard, Norton 360 Deluxe and Norton 360 with LifeLock include the most complete antivirus-software and identity-protection-service combinations you'll find today.

McAfee Mobile Security has transformed into a leaner mobile security app with a few less features but its protection remains top notch.

McAfee's antivirus lineup provides decent malware protection, but some other brands do it better.

Lookout Mobile Security is expensive, but this Android antivirus also includes excellent identity protection.

Bitdefender Mobile Security is the best overall choice for mobile protection with excellent malware defenses, low-overhead scanning and plenty of useful extra features.

Regardless of which version of Avast Mobile Security you choose, you’ll get a good, but slow mobile antivirus program.

Google Play Protect may be free, but it’s not as effective mobile security as some third-party options.

Bitdefender's Windows antivirus software offers excellent protection along with a slew of features meant to secure your family's systems and identities.

Kaspersky Security Cloud Free combines excellent malware protection, plenty of extra features and a very light system-performance impact.

Kaspersky's Windows antivirus lineup offers close to complete coverage without slowing down your computer much, although the least expensive program doesn't offer many extra features.

Bitdefender Antivirus Free Edition runs on autopilot and offers no extras or customization options, but it's ideal for anyone who doesn't want to fuss with antivirus software.

Trend Micro Antivirus for Mac offers flawless malware protection but does little to stand out from the crowd.

Intego Mac Internet Security X9 shines brightly in a couple of areas, but it ultimately doesn't compare to the best Mac antivirus apps.

ESET's security software is fast, accurate and thorough. It lacks some extra features we take for granted but has a very light impact on your system performance.

Trend Micro offers solid malware protection, but you'll see a slowdown during scans

Sophos Home Premium provides decent protection against malware for a fair price but lacks many commonplace antivirus features.

Avast Free Antivirus offers a ton of features for a free antivirus program but has mediocre malware protection and a heavy system load.

AVG AntiVirus Free is beaten in features by its more glamorous sibling Avast Free Antivirus and beaten in malware protection by everything else.

Windows Defender isn't the absolute best antivirus software, but it's easily good enough to be your main malware defense.

Kaspersky Mobile Security works well, but its feature set lags behind the times.

Qihoo 360 Security promises an extensive feature set, but many of the features don't work, and the free version is drowning in ads.

Malwarebytes for Mac Premium is Unproven and lacking in special features. Use the free version instead alongside better Mac antivirus software.