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Norton Notification: Vulnerability BLOCKED

Posted on 2010-11-18
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Last Modified: 2012-05-10
I occasionally get the following Norton Notification:

Vulnerability BLOCKED
When: (date and time)
From: (IP address of another computer on my network
Attack Name: Portscan
Application: /mach_kernel

Is this anything serious, or is it just normal network activity?

If it matters, the notification shows up on my MacBook. The IP address in the notification is a PC.

Thanks in advance for your help.

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Question by:bob42376
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