"No Mr. Bond, I expect you to die."

Translation: it isn't.  If you mine in a pool and this fact worries you:

A) ask your pool admins to enable HTTPS urls for miners
B) move to a pool that uses HTTPS for miners
C) move to a pool that allows you to create miner-only passwords (e.g. you can use them in a URL for your miner, but they cannot be used to log in to that pools' web site to change your account, a la bitcoinpool.com)