I found this interesting article about the vulnerability of brain wallets that left me asking some questions. I personally think the author of the article deserves a sharp pain below the waist line. He actually attacks and insults brain wallet users, provides very vague information, and it appears, the article is written to make you worry about your brain wallet, or any type of wallet for that matter.  Please read article below.


http://www.fastcompany.com/3056651/researchers-find-a-crack-that-drains-supposedly-secure-bitcoin-wallets


1> What I would like to know is, if when I generated my wallet, a seed was created for me to be able to restore my wallet at a later point in time, when I want to bring the wallet online again, how could my seed, and therefore my key be attacked??? There is nothing in the blockchain since there has never been any transactions. I don't understand what the author is really talking about? And even if I have conducted transactions to the wallet addresses, how could the presence of those public addresses in the blockchain be used to attack my wallet?

2> Is my above example a brain wallet, or is it something different??