Some people said, that the wallet is not safe and coins can be lost...
Momentarily the wallet for windows does not have the "encrypt" option, so you can not protect transactions with a password. Or be careful or you can use a third-party wallet for the time being.
Ok, wich third-party wallet supports Zero? I only worry about, if they create a new wallet or something, that my ZER are lost in the BETA-Wallet.
Third-party wallet I mean the exchange market, so you're password-protected and two-factor authentication. Although absolute security does not exist in any context of life.