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Security Software

The Security Software category is your source for antivirus, anti-spyware, and encryption apps. Download.com's... more
The Security Software category is your source for antivirus, anti-spyware, and encryption apps. Download.com's extensive collection of security software is designed to safeguard your online activity.
Avast Free Antivirus

Avast Free Antivirus
Free

Avast Free Antivirus

Stay safe from viruses, malware, spyware, and hackers.

Free
Editors' rating
User rating
Publisher: Avast Software Downloads: 396,074,974
Malwarebytes Anti-Malware Free

Malwarebytes Anti-Malware Free
Free

Malwarebytes Anti-Malware Free

Detect and quickly remove malicious threats to your computer.

Free
Editors' rating
User rating
Publisher: Malwarebytes Downloads: 143,976,972
Panda Free Antivirus

Panda Free Antivirus
Free

Panda Free Antivirus

Keep your PC free from viruses and malware.

Free
User rating
Publisher: Panda Security Downloads: 12,524,283
AVG AntiVirus Free

AVG AntiVirus Free
Free

AVG AntiVirus Free

Protect your computer from viruses and malicious programs.

Free
Editors' rating
User rating
Publisher: AVG Technologies Downloads: 562,312,445
IObit Malware Fighter

IObit Malware Fighter
Free

IObit Malware Fighter

Scan and remove malware from your system.

Free
User rating
Publisher: IObit Downloads: 21,447,334
Avast Free Mac Security 2016

Avast Free Mac Security 2016
Free

Avast Free Mac Security 2016

Protect your PC against the latest viruses and spyware.

Free
Editors' rating
User rating
Publisher: Avast Software Downloads: 5,145,076
AVG AntiVirus for Mac

AVG AntiVirus for Mac
Free

AVG AntiVirus for Mac

Protect all that's important on your Mac.

Free
Editors' rating
User rating
Publisher: AVG Technologies Downloads: 1,262,219
Advanced SystemCare Ultimate

Advanced SystemCare Ultimate
Free to try

Advanced SystemCare Ultimate

Protect your computers from viruses and speed up overall system performance.

Free to try
User rating
Publisher: IObit Downloads: 2,067,909
360 Security - Antivirus Free

360 Security - Antivirus Free
Free

360 Security - Antivirus Free

Protect your Android against the latest viruses, malwares, system vulnerabilities and privacy leaks.

Free
Editors' rating
User rating
Publisher: Qihoo 360 Technology Downloads: 626,581
AdwCleaner

AdwCleaner
Free

AdwCleaner

Search and remove unwanted adware and toolbars from your computer.

Free
Editors' rating
User rating
Publisher: Malwarebytes Downloads: 3,340,427
Results 1 - 10 of 7,792

About Security Software

The Security Software category is your source for antivirus, anti-spyware, and encryption apps. Download.com's extensive collection of security software is designed to safeguard your online activity.