“It’s true that for a number of years the ATMs have had a default passcode. Almost everything you buy that’s technology-based has some default password that you have to change once it becomes yours … Anyone that’s trained on how to install an ATM is taught to change that password.”

I told him about the guerilla field test I blogged yesterday — in which a computer security professional tried the Triton default passcode on the first ATM he found, and got in. Does that suggest the number of vulnerable machines is high?

“I suspect, if it’s a larger percentage than I’m hoping, that it won’t be long until most of them are changed, if not all of them … We fully intend to make sure our customers are very aware of need to change their passcodes.”