For maximum security, you want unique passwords with random characters that are changed every three months. This is not easy.
Most banks don't require you to change your passwords after a certain period of time. EmigrantDirect is one of those banks that seem to require you to change it after every 3 months. If you forget, it can be troublesome to resolve.
There are some methods that can help you come up with multiple secure passwords. This article describes a good way, but it still doesn't make it easy to regularly change your passwords.
Here's the link to this new password helper blog.
I hope you find it useful.