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The types of threat are wide and varied, but antivirus software is designed to detect and stop them all. Other terms, like “worm,” “trojan” (as in the Trojan Horse) or the more all-encompassing “malware” might be more accurate. In these cases, the self-replicating viral factor might not even be present, so the software isn’t even technically a virus.
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Often these will be sent as emails or websites pretending to be something they’re not, like a crucial software update you need to click on, a process called “phishing.” A “spyware” or “spybot” program searches the files on your computer for your personal information like login passwords or bank accounts, while “ransomware” locks down your files and instructs you to send money to criminals to get them back. Then there are viruses designed to take remote control of your computer, often without you realizing it, in order to create a secret network called a “botnet.” Botnets like MyDoom can be used to spread spam or scams, or attack other computers with distributed traffic designed to shut down web services.īut the most insidious and personally dangerous type of virus, and the more common one in the modern world, is designed to steal from users themselves. The famous “ILOVEYOU” virus spread through email downloads and merely overwrote files on the hard drive with junk data, until the computer became unstable and had to be completely wiped. In the early days of personal computers, a lot of viruses were designed merely to damage your computer for the sake of pure mischief. What precisely a virus does depends on the specific virus, but it’s never good. “Virus” in this context has a broad definition, but to put it simply, it’s a program that gets installed on your computer, then automatically spreads itself to other computers across a network or the internet, mimicking the spread of a biological virus spreading through an organism’s cells. To understand what antivirus software does, you need to know what a computer virus is. For the best antivirus software in 2023, be sure to check out our extensive roundup of the best antivirus programs.
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PCWorld is constantly covering the latest news in viruses and other threats, and how to defend against them. This includes detecting and blocking viruses, a very specific type of program, but also a wide variety of other digital threats. An antivirus program is a piece of software that keeps your computer (or phone, tablet, etc.) safe from other software that tries to attack it. And that starts with good security software. If you have issues adding a device, please contact us.What is Antivirus software? Getting started with PC securityĠ7/07 13:45 - What is Antivirus software? Getting started with PC securityĪs our lives become more and more digital, keeping our information and devices secure has become more important than ever. Usage: for non-commercial household use only.Updates: your subscription may include product, service and/or protection updates, and features that may be added, modified, or removed, subject to the acceptance of the License & Services Agreement.To cancel your contract or request a refund, click here. For details, visit our Cancellation & Refund Policy.
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For free trial with paid monthly subscription, you can request a full refund within 14 days of being charged.

For each annual renewal or free trial with paid annual subscription, you can request a full refund within 60 days of being charged, and after the 60 days, a pro-rated refund of the days left in your renewed subscription term, beginning the month after you request the refund.

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Set-up: to get the protection/service started, you must download and install on each device and/or complete set-up.Contract Type: contract for a monthly or annual subscription, starting when the transaction is complete.
