I travel a lot and often find myself needing to chat with colleagues back at the office via instant message (usually MSN but sometimes Yahoo). Problem is, I really don't want everyone else in the café using the open wireless network from sniffing the discussion. Is there some secure solution that's easy and portable?...

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I've become paranoid about security on my Mac laptop and just bumped into a story about some hackers who claim that they can break into a Mac laptop via the wifi connection. Yikes! How do I disable the hole so that no-one can use this exploit to get into my computer??...

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A question about DMZ's: We run a privately addressed network(192.168...) on a workgroup. We have a server running DHCP. If I set up a DMZ on a managed switch I would like to know if a potentially infected (spyware/trojans) PC which is then plugged into it would be able to infect the server....

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