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Learn about the latest online threats and how you can protect your PC or mobile device—and your privacy. Check out our guides and security downloads for all platforms.

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Learn how to enable passcodes, regulate your apps' location permissions, enable two-step verification and more.

Security on the Community

Security experts answer your questions

Downloads for Security

software editor's choice
  • Kaspersky Internet Security - free

    Kaspersky Internet Security does a better-than-average job of keeping your PC safe. Three new features along with expected upgrades to their antivirus engine keep Kaspersky competitive.

    4.5
    available for : windows
  • Mobile Security & Antivirus - free

    Mobile Security & Antivirus is a free mobile security application that provides Android devices with full-featured Antivirus and Anti-Theft security.

    4.5
    available for : android
  • Microsoft Security Essentials - free

    Microsoft Security Essentials is a free software with security features all together.

    4.5
    available for : windows
See "Security" downloads
news - OCTOBER 21 1

Apple's Yosemite OS does, indeed, collect user search data, but the process is both anonymized and totally optional.

Tutorial - OCTOBER 1

As with other security-enabled IDs and profiles, your Apple ID can also be protected with two-step authentication in order to add an additional...

news - OCTOBER 21 1

Nearly a dozen Staples office-supply stores in the Northeast seem to have suffered a card-data breach; the company is investigating.

news - OCTOBER 21 0

Apple Pay is making its professional sports stadium debut at both arenas hosting the 2014 MLB World Series.

news - OCTOBER 20 0

Drinking bleach will not cure Ebola, and that 'breaking news alert' in your inbox may just lead to malware, security experts warn.

news - OCTOBER 17 0

Apple fixed the POODLE and Shellshock flaws for Mountain Lion and Mavericks, but to get 40 more fixes, you'll have to upgrade to Yosemite.

news - OCTOBER 17 1

Ventir is a new strain of Mac OS X malware that bundles in a Trojan, a keylogger and even an open-source component.

news - OCTOBER 17 0

Whisper, an anonymous quip-and-photo-sharing app, may know exactly where its users are and even use that information to identify them.

news - OCTOBER 16 25

The new iPhone's Apple Pay mobile-wallet system sounds fantastic -- until you read the fine print.

news - OCTOBER 16 12

FBI Director James Comey told a Washington audience that the privacy features of Android and iOS devices would let criminals go free.

news - OCTOBER 16 0

A security researcher says that New York Times article webpages dated before 2013 could be used to stage Web-based attacks on readers.

news - OCTOBER 16 0

Facebook's new Safety Check feature allows you to show friends and family members that you're safe during natural disasters.

news - OCTOBER 15 0

Currently in development, DarkMatter is an Android fork that can be used to greatly heighten the security on a regular Android device.

news - OCTOBER 15 4

A newly disclosed flaw in Web encryption threatens all secure online communications. Fortunately, there are easy ways to avoid it.

news - OCTOBER 15 1

Between Microsoft's extensive patching and a handful of updates from Adobe, today is a much more secure day to be online than yesterday was.

news - OCTOBER 14 1

The Internet was positively abuzz with apocalyptic articles about a millions-strong Dropbox hack yesterday, but such a thing never happened.

news - OCTOBER 13 3

On Oct. 14, Microsoft will patch nine security vulnerabilities, from avoidable to catastrophic, across a wide variety of programs.

news - OCTOBER 11 1

Ghostery, a privacy company, shared a number of tips and tricks to help users decide where their data belongs, and where it doesn't.

news - OCTOBER 10 3

The retailer said data-stealing malware was found in its payment systems, but did not reveal the number of stores or customers affected.

news - OCTOBER 10 0

Someone is promising to post online 200,000 racy photos taken by Snapchat users, but it's not clear if the data dump is real.

news - OCTOBER 10 1

The Shellshock flaw affects a very important software program that most people know little about. Here's how Shellshock could affect you.

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