A virus can exist for multiple reasons: to either be an annoyance to the user, or to inflict damage to the user or computer by stealing password links, downloading malware, connecting at random to unprotected networks, or deleting properties of anti-virus software, thereby rendering it ineffective, allowing for the entry of even more viruses.
Viruses are rarely discovered by the user - it typically takes the assistance of anti-virus software to uncover their existence. Top anti-virus software includes Norton Utilities, Kaspersky, and McAfee, while AVG offers respectable free software perfect for those seeking virus protection on a tight budget.
McAfee AntiVirus Plus: McAfee's basic package, but said to be 99.9% effective, utilizing Active Protection technology to analyze and protect against the latest viruses without prompting the user to update the software on a daily basis.
McAfee Internet Security: Provides advanced parent controls and expands McAfee's protection services to e-mail, automatically detecting and deleting spam.
McAfee Total Protection: Secures valuable files and provides defense for home networks. Users will also be made aware of potentially dangerous websites with the addition of the SiteAdvisor Plus software.
For Mac: Although viruses on Macs are less common, they can exist. McAfee has a line of anti-virus software designed specifically for Mac users.
PURE Total Security: Perhaps Kaspersky's greatest contribution to anti-virus software is their PURE Total Security package, which allows users to view and manage the security of multiple PCs from one PC.
For $89.95/year, users can protect up to 3 computers, enjoy the benefits of advanced virus-detecting software, and can utilize intuitive backup encryption to secure financial data, personal documents, music files, and cherished family photos. If $89.95 seems pricey, try the free 30-day trial first.
Business Security: Kaspersky has a range of anti-virus software for all sized businesses. If you manage a small business with 10 computers or less, opt for the Small Office Security package. Kaspersky can also service larger offices, and offer extremely broad and comprehensive coverage for all employees by utilizing cloud technology.
Norton 360: Provides the user with a balance of virus-detecting software mixed with data backup. 360 is designed to maximize efficiency, and steps outside the normal anti-virus software bounds to do so. Prized files that the user selects can be automatically backed up to a USB drive or external hard drive, or the files can be uploaded to the 2GB of online storage included in the 360 package.
Norton Premier Edition: The Premier Edition comes with nearly all of the same features as Norton 360, but adds parental controls. Parents can keep track of the websites their children visit, block potentially dangerous sites, and can monitor social networking.
AVG Anti-Virus Free: If you're hesitant about spending any money on anti-virus software, AVG has a bare-bones virus detector that is free for download. Websites containing harmful or malicious links are blocked, and AVG's LinkScanner will display the safety rating of a given website before you visit it. Should you decide more advanced anti-virus software might be necessary, AVG also has a line of commendable anti-virus products at affordable prices.
The purpose of antivirus software is to keep your computer clean from malicious software, codes, etc.