are you saying that if i dont use password then there is a chance it would fork the network?
Seems like that. Unlock after your wallet is fully synced. Looks like I need to encrypt all my POS wallets.
there always is a risk involved with pos coins that this can happen. really it is basic security to encrypt anyway regardless :-)
It's off topic, but I did not really understand why a wallet allows to have pos mining if it is still downloading a blockchain! It is like allowing to send coins on your wallet even if the blockchain is not full syncronized. It seems that the programmer that first code the POS functions did not implement a simple check to prevent problem.
As not all wallet are encrypetd (think for example at pools), you can still using the "reservebalance=987654321" option in conf file to prevent POS.