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What Does Smartphone Antivirus Software Do?

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  • Written By: Jeremy Laukkonen
  • Edited By: Allegra J. Lingo
  • Last Modified Date: 01 November 2016
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Smartphone antivirus software can offer an added level of protection against malware that is designed to attack mobile operating systems (OSes). These operating systems were once considered to be relatively safe from malicious attacks, but they can be just as vulnerable as other computing devices. Most smartphone antivirus software packages defend against viruses, trojans, and other types of malware, but some also offer additional theft protections, such as subscriber identity module (SIM) card locking. Smartphones are vulnerable to various types of malware due to the ubiquitous email and Internet access offered by these devices, but they can also be infected by installing malicious programs that are disguised as helpful software.

Antivirus software has been available for smartphones for as long as the devices have existed, though the first major virus outbreaks did not occur until 2010. At that point, several popular mobile operating systems were targeted by malicious software. These devices often contain valuable data such as passwords, credit card information, and emails that computer criminals target. Smartphone antivirus software cannot protect against every attack, but it can create a much needed layer of protection for devices that are commonly used to access the Internet or download applications.

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Some smartphones come with built-in protection against outside attack that tightly control which programs can access various functions. These measures are often sufficient to guard against malicious activity, though devices that are altered from the factory settings through jailbreaking, rooting or the installation of custom firmware can lose this protection. It can be especially important to install smartphone antivirus software on devices that have been significantly altered, however even phones that retain all their factory settings have proven vulnerable to certain attacks.

Antivirus software packages typically take a more active stance against unwanted intrusion than the measures that some handsets implement by default. These smartphone antivirus programs can scan downloaded applications and email attachments for malicious content, identify dangerous websites, and monitor the system for suspicious activity. Regular updates on various new types of malware, including potentially dangerous infections such as rootkits and data miners, are typically included for ongoing protection.

In addition to basic protections from malware, some smartphone antivirus software packages also include functionality to provide physical security. A SIM card lock can prevent a thief from using a stolen phone, and a remote wipe feature can be used to destroy valuable data and prevent unauthorized parties from accessing it. Some software packages also include a backup SIM card that can be used to regularly transfer important data so it cannot be lost along with the phone.

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Terrificli
Post 2

@Vincenzo -- can't comment on Microsoft, but I do know that is the case for Apple because they are strongly restrictive when it comes to what apps can be distributed through it's store.

So, it's next to impossible to pick up a virus from an App installed directly to iOS. If someone has jailbroken an iOS device so "independent" apps can be installed, then that's another story. Still, most iPhone, iPad and iPod users won't have to worry about downloading an app that has a virus.

Things are a bit different in the Android world. Google Play is pretty good about weeding out viruses as is Amazon's apps store. But there are a lot of other apps stores for

Android and they may or may not police their wares as diligently. Viruses can be a problem for Android, then, unless the user is very careful about what is downloaded when straying away from the more established marketplaces.

Of course, there are still some emails and Internet sites that target mobile devices. We'll probably see more of them as mobile devices become even more popular.

Vincenzo
Post 1

Why would you need an antivirus program to protect against apps? Don't Google, Microsoft and Apple pretty well keep virus-laced apps out of their stores?

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