What follows are reviews of five free anti-malware apps for Android devices: Avast Free Mobile Security, AVG Mobilation Anti-Virus Free, Lookout Mobile Security, Norton Mobile Security Lite and NQ Mobile Security. I've reviewed each of these apps based on what features it has available and how well the interface works. Most also offer for-pay versions that have additional functionality, which I've noted where it exists.
And many of them (in free and/or paid versions) don't only scan for malware and offer preventative measures, but provide anti-theft features as well -- such as alarms that can be triggered remotely (to call attention to the thief) or the ability to lock and/or wipe the device.
If you're reluctant to use a security app, perhaps it would help if you think of it as the equivalent of chicken soup: It can't hurt -- and could possibly keep help keep away any nasty infections that may be lurking about.
How to secure your Android device
Here are some things you can do to dramatically reduce the risk of malware infections on your Android phone:
Use the official Android Market instead of third-party app stores or websites, especially now that Bouncer is used to monitor for malware. If you want to help ensure that you only install apps from Android Market, you can turn off the ability to install apps from unknown sources in by going to Settings and then to the Security menu (in Android 4.0 or later) or the Applications menu (in earlier versions of Android).
Research apps before downloading: Check the publisher and app reviews.
Pay attention to app permissions during the installation and check the market listing or developer for an explanation of any suspicious permissions.
Install an antivirus/security app.
Be wary of phishing scams and malware via the Web browser or SMS messages.
Be cautious if you root your device and keep an eye out for the Superuser prompts that are displayed when an app requests root permissions. Rooting allows you to use some powerful apps and even enhanced security functionality, but at the same time increases potential damage from infections.
To protect your Android device against local attacks -- a thief or snooper -- enable lock screen security (or, if you're one of the lucky few who already have Ice Cream Sandwich, you can test out the new Face Unlock feature.)
Finally, to prevent any malicious apps from sending messages to a number that will automatically charge your account, see if your wireless carrier can block the ability to sign up for premium SMS subscriptions.
Other versions: None
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