"went on to suggest that customers who were paying attention would have noticed Bandesco's secure sockets layer certificate generated an error when they were redirected to the fraudulent login page."

I doubt that. If the domain name matched the certificate (which it would have, since it is the IP address that gets changed), there would have been no error.

But the spoof site wouldn't have had a kosher certificate with the domain hence the error.

There a great mistake in the article:

"about 1 percent of the bank's customers were affected by the attack"

The correct is: Virtua said that 1% of their customers was afected by this incident, not the customers of Bradesco Bank.

If this brazilian banks implements SSL in the first page, the customers can discover the attack more easily.