The best way to protect your online accounts or any other kind of encrypted data is to use a passphrase. Consider a passphrase as a password on steroids: it is very resistant to attacks and it is easier to remember than a very complex password with random letter, numbers and symbols. My Own Passphrase (MOP) relies on 25 dictionaries and it is set to generate passphrase with more than 200 bits of entropy by default. This app creates a phrase made with 4 or more common-sense words that are easy to keep in mind for future uses; you can switch to a different dictionary and you can fine tune the generation process by enabling or disabling options from the settings panel.