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doctor pangloss said:
I've heard this is problem for pc's. But is it an issue for us mac users?
I don't see why it wouldn't be an issue. As always, only install software from sources you trust. It's exceedingly unlikely that such a thing would get on there without your (possibly inadvertent) help.

If so how would you detect it?
If the key logger was any good, you wouldn't :D
 
Thanks, I'm pretty careful. But my machine was out of my hands once for a couple of weeks while the apple service here repaired my airport card antenna. I suppose if anything started happening it could be traced to them.
 
There is Little Snitch if you want to check your system for unexpected network activity once in a while. That is the only likely way a key logger would be used, unless someone else had physical access to your machine to retrieve records.
 
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