No Viruses...right?

Discussion in 'Mac OS X Lion (10.7)' started by ghsNick, Apr 27, 2012.

  1. ghsNick macrumors 68030

    ghsNick

    Joined:
    May 25, 2010
    #1
    My buddy got a fraudulent email on his Mac and opened it...

    http://www.snopes.com/computer/virus/ups.asp

    That's a description of the virus...I told him that wouldn't work on a Mac. Am I right that this virus couldn't infect his computer?
     
  2. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #2
    Macs are not immune to malware, but no true viruses exist in the wild that can run on Mac OS X, and there never have been any since it was released over 10 years ago. The only malware in the wild that can affect Mac OS X is a handful of trojans, which can be easily avoided by practicing safe computing (see below). Also, Mac OS X Snow Leopard and Lion have anti-malware protection built in, further reducing the need for 3rd party antivirus apps.
    1. Make sure your built-in Mac firewall is enabled in System Preferences > Security > Firewall

    2. Uncheck "Open "safe" files after downloading" in Safari > Preferences > General

    3. Disable Java in your browser. (For Safari users, uncheck "Enable Java" in Safari > Preferences > Security.) This will protect you from malware that exploits Java in your browser, including the recent Flashback trojan. Leave this unchecked until you visit a trusted site that requires Java, then re-enable only for the duration of your visit to that site. (This is not to be confused with JavaScript, which you should leave enabled.)

    4. Change your DNS servers to OpenDNS servers by reading this.

    5. Be careful to only install software from trusted, reputable sites. Never install pirated software. If you're not sure about an app, ask in this forum before installing.

    6. Never let someone else have access to install anything on your Mac.

    7. Don't open files that you receive from unknown or untrusted sources.

    8. For added security, make sure all network, email, financial and other important passwords are long and complex, including upper and lower case letters, numbers and special characters.

    9. Always keep your Mac and application software updated. Use Software Update for your Mac software. For other software, it's safer to get updates from the developer's site or from the menu item "Check for updates", rather than installing from any notification window that pops up while you're surfing the web.
    That's all you need to do to keep your Mac completely free of any Mac OS X malware that has ever been released into the wild. You don't need any 3rd party software to keep your Mac secure.
     
  3. saberahul macrumors 68040

    Joined:
    Nov 6, 2008
    Location:
    USA
    #3
    From here.

    From here.
     
  4. MisterMe macrumors G4

    MisterMe

    Joined:
    Jul 17, 2002
    Location:
    USA
    #4
    How can you claim that it is possible for MacOS X to get viruses when it has never happened? Reposted garbage is still garbage.
     
  5. GGJstudios macrumors Westmere

    GGJstudios

    Joined:
    May 16, 2008
    #5
    I'd be careful about what sources you use for information. There is a lot of misinformation posted on the web, especially on sites like blogs and About.com, where you don't know the qualifications of the writer.
    There are other methods of encountering malware that don't depend on an internet connection, such as using shared network drives or flash drives.
    This is not true, as has been demonstrated recently with the Flashback trojan, which did not require root access.
    Having Java enabled is not the same as having root access. The writer obviously has no idea what they're talking about.
    That's not the definition of a true virus. Read the Mac Virus/Malware FAQ for accurate malware definitions.
    That is false. One of many available options, ClamXav is free and does a good job, for those who want to run antivirus software.
    It is theoretically possible for Mac OS X to be infected by a virus. It just hasn't happened, since no true virus has ever been released into the wild.
    I agree.
     
  6. saberahul macrumors 68040

    Joined:
    Nov 6, 2008
    Location:
    USA
    #6
    Point noted.
     

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