I have a small Truecrypt volume that contains just my password data (using Bruce Schneier's Password Safe application).
I'd like an offsite, secure, backup of that Truecrypt volume. Currently, I am using mainly Spideroak, but this question would apply to any such "cloud" storage services.
Backing the volume up to the cloud means exposing it to my ISP, god knows how many other downstream servers, the storage supplier, and every eavesdropper in town. Plus I may be backing it up weekly, so there'd be a series of files available for anyone who wanted to do differential analysis.
Just how safe are my passwords when out of my hands and on all those other machines?
I am not paranoid enough to assume I am being specifically targeted (if I were, the men in black would have plenty of other ways to get to my computers), but leaks and opportunistic attacks do occur(if they didn't, I could go with plaintext files).