we should learn from bitcoin, all mistakes was made on price, now no one get hacked as individual who had more than 1000$ in bitcoins and using them (thief getting personal wallet etc) i dont count some exchange go rogue or some 3rd party website
the bitcoin wallets (offline for example) idea are secure enough for steemit
and make offline signs on all action after we done writing/voting/using our wallets , but steemit already have that in mind by having more than one key for each action so should be very easy to setup someting up :)