for more we're joined by michael riley a reporter with bloomberg. what happened at home depot? >> it wasn't that different than what happened at target. basically the hackers got into the network and were able to use home depot's own system to put malware on the system. when you went into home depot and swiped the card, they were stealing the card almost as quickly as home depot was getting it. >> sreenivasan: after seeing what happened to target-- this is a company with 80 billion in revenue, 2,000-plus stores in the u.s., didn't they learn from it? >> yeah, that's the thing. it's one thing to be target and watch this happen in a relatively new kind of attack. it's another thing to be home depot, watch target get taken down, lot of them lose 40 million credit cards, not elsewhere, or not learn nuf to act act quickly so it doesn't happen to you. home depot didn't seem to take the steps, quickly enough, anyway. in one case they bought an encryption system to encrypt the data from the remster, but they didn't install it until six, seven days ago. >> sreenivasan: compare this to t