1 Reply Latest reply: Mar 12, 2011 2:09 AM by Matt Clifton
thezak Level 3 (505 points)
What's this?... ip68-5-3-157.oc.oc.cox.net

Vulnerability BLOCKED
When: Mar 12, 2011 12:42:29 AM
From: ip68-5-3-157.oc.oc.cox.net
Attack Name: Portscan
Application: /mach_kernel

icon. white x over red stop sign

Norton Notification

Options \/
Less Info
Configure Vulnerability Protection...
Learn More About This Attack...


27 inch iMac 3.2GHz Intel Core i3, Mac OS X (10.6.6)
  • Matt Clifton Level 7 (29,850 points)
    Are you running Norton Security? Looks like a notification that it detected and blocked a portscan from the outside world. You probably could have clicked on "Learn more about this attack" to ... learn more.

    A portscan is a detection method to see what network vulnerabilities you have. Think of it like a burglar trying the doors and windows. Generally this only tends to be a problem if you have a computer hooked directly into the internet and don't have a firewall or other protection. Adding a wired or wireless router between your computer and your modem can help protect against incursions.

    If you're not running Norton, and it just appeared while you were browsing, it's a spam popup designed to scare Windows users into downloading malware, and you can just close the window and ignore it.