There is no wallet which is SECURED one.
All the wallets are one and the same and having the same principle of working. They get unlocked with either pass phrase, private keys and keystone file. I guess if you loose them then you loose access to the wallet. If you get phished from external source then you can get hacked easily.
Now these all wallets are online and prone to such things. They are secure if you are keeping everything safe.
Hardware could be the thing you should checkout. - Research it.