All 3 of the major BSD's supported encrypted swap partitions/files, this should prevent anyone from gleaming any useful information from them.. even unencrypted it would look a lot like garbage, random 4K pages in unpredictable locations.
I know for a fact that this is done by default on OpenBSD, I do not know if that can be said for the other BSD projects.. someone else here can answer that for you.
Reading from the swap file/partition is possible as root, permissions do allow it.
Briefly searching Google, I found several hits for encrypted swap/page files in Windows.. you might need 3rd party support for it though.
Hope that helps..
|