Was Jerome Kerviel a man "without any particular genius"?

Within the past week, Jerome Kerviel changed the landscape and mindset of the financial world. According to the article from the Tribune Company, Kerviel is responsible for a whopping $7.14 Billion in losses incurred by French megabank Societe Generale. Although everyone's initial shock stems from the monetary value Kerviel cost his employer (not surprising considering the value), I was left in awe when reading about the ease and amount of transactions involved in his illegal actions.

For Societe Generale to comment on Kerviel as a "fragile person...without any particular genius" really worries me. Is this French bank so arrogant that they fail to believe he truly profited at any time from his illegal trading (which they also stated)? Are those at the top so stubborn to give Kerviel any credit for defrauding their organization for the largest amount in history? Or are those executives at Societe Generale telling us something else?

In an updated article, the bank claims he "hacked computers and "combined several fraudulent methods". How easy is this system to hack? If Kerviel was truly a man "without any particular genius," can we expect thousands of computer wizards to flock to investment banks in search of a trading position, which they will be able to use to extort or defraud massive amount of money? Are these banks, supposedly with the top computer security in the world (save national governments and agencies) really that safe?

Societe Generale might want to start a company-wide investigation, quick. Ditto for the rest of the banks. Because if Kerviel is just a normal guy with average intelligence and knowledge of his field and the trading system, this won't be the last case we see of this nature in near future.