MACDefender, or Mac Defender, is a Trojan horse that first appeared in early 2011, masquerading as an antivirus program in an attempt to get users to share their credit card information over an unsecured site. The MACDefender rogue antivirus software targets Mac users via a phishing scam that redirects the users from legitimate sites to fake sites that make the user think their computer has been infected with a virus.
If a user were to click on the bogus link and install the MACDefender software, he or she would be presented with a professional-looking but ultimately fake antivirus program. The MACDefender malware installation could also begin automatically if Safari’s "open safe file after downloading" option had been selected.
Once installed, MACDefender will periodically open pornographic sites in an attempt to make users believe they have a virus on their computer and as a result need to purchase the "registered version" of the MACDefender software with a credit card.
Variants of the original MACDefender Trojan have appeared recently with names such as Mac Security and Mac Protector. Apple has released a software update that automatically finds and removes the Mac Defender malware as well as its currently known variants.
Tape clearly is on the decline. But remember, legacy systems can hang for a shockingly long time. Read More »Apple Pay Promises to Strengthen Payment Security
Experts believe that Apple Pay and other competitive payment systems will be far more secure than cards, even cards equipped with EMV chips. Read More »Internet of Things Shaping IT's Future
To make the IoT both work and pay off, IT is juggling upgrading and building app-centric networks, mapping out new data center architectures and... Read More »
The trend for the past two years has been for shoppers to spend more online during the holiday season. How do you typically shop for holiday... Read More »How to Create a Desktop Shortcut to a Website
This Webopedia guide will show you how to create a desktop shortcut to a website using Firefox, Chrome or Internet Explorer (IE). Read More »Flash Data Storage Vendor Trends
Although it is almost impossible to keep up with the pace of ongoing product releases, here are three recent highlights in the flash data storage... Read More »
Stay up to date on the latest developments in Internet terminology with a free weekly newsletter from Webopedia. Join to subscribe now.
- Watch Datamation's editor James Maguire moderate roundtable discussions with tech experts from companies such as Accenture, Dell, Blue Jeans Network, Microsoft and more »