I've seen many people on here saying that there are no documented cases of viruses ever hitting the Mac. The things that people say were viruses were really trojans or malware, but never an actual virus. I took there word for it, and threw that little tidbit into a presentation I just did for class. Some guy in there argued against that, saying that Macs have been infected in the past. I said that they couldn't have been viruses, and must have been a trojan or another form of malware. Not a virus. So, I got home, jumped on here again and confirmed everyone saying that there are no documented viruses ever. Well, he just sent me a pretty nifty list of viruses. Here it is: Code: 1982: 15-year-old Rich Skrenta creates the first known Macintosh viruses to go wild, Elk Cloner. The boot sector virus spreads itself on Apple II computers via infected floppy disk, and results in a short poem showing up every 50th boot. 1994: The short-lived INIT-29-B virus modifies system files and other applications, sometimes crashing the system. 1995: The HyperCard HC-9507 virus puts Mac users in a “pickle” by spreading to other HyperCard stacks. 1998: The “Hong Kong virus” (actually a worm called AutoStart 9805) uses the AutoPlay feature of QuickTime to infect PowerPCs by copying itself across disk partitions. 2006: The OSX/Leap-A (aka OSX.Oomp) worm spreads through the iChat buddy lists by sharing the file latestpics.tgz file (falsely advertised as leaked screenshots of the new OS 10.5 Leopard). 2006: The proof of concept virus OSX.Macarena poses no threat, but can infect files in the current folder of Intel-based Macs. 2008: The Trojan horse AppleScript.THT takes advantage of vulnerability in the Remote Desktop Agent feature, hides itself from the firewall and allows hackers to take control of the infected computer. 2008: The OSX.Lamzev.A and OSX.TrojanKit.Malez Trojan horses are created to open a back door. Fortunately, a hacker would pretty much have to have control of your Mac already to use it. 2008: Masquerading as a video codec on adult websites (always a tip-off), the OSX.RSPlug.D Trojan allows a remote server to download files. 2009: Illegally downloaded copies of the popular software iWork ’09 and Adobe Photoshop CS4 come with the malicious OSX.Iservice and OSX.Iservice.B Trojans used to steal users passwords in attempts to create iBotNet. 2010: A new iteration of the Trojan horse OSX/HellRTS threatens to duplicate itself and open a backdoor for hackers. 2011: Rogue antivirus program (aka "scareware") MACDefender attempts to convince users to install the fake Mac security software, which then pushes porn popups to encourage you to purchase the software to "fix" the problem. Most look like trojans. But what's up with INIT-29-B? Is this just more confusion between viruses and other forms of malware, or were the people on here telling me that a virus has never hit the Mac misinformed?