theoretically, can we achieve the below objectives all?

[wujh]

For service such as Clearcoin, I guess such objectives should be all achieved.

back up frequently from the lose of the wallet.
keep it safe from outside hacking
keep it safe from the insider theft, junior level stuff. who has access to the computer of the exchange.
keep it safe from the CEO, CFO or other senior level stuff who might stole the bitcoin.
keep it safe from the sudden death of the senior stuff, which will make the loss of the password or key hold by the stuff.