OT - Heartland Payment Systems

[Janos Dohanics]

I came across this today:

http://information-security-resources.com/2009/01/29/did-heartland-ceo-make-insider-trades/

The article discusses some questions about the security breach which occurred 
at Heartland Payment Systems. Among other things, the article says:

“Somehow, these guys went directly to the base level of the machine (to an 
area) that was not part of the file table for the disk”

“Somehow, they got around the operating system."

I'm wondering what is suggested here?

-- 
Janos Dohanics