She informed me that there had been no direct fraudulent transactions on my account. Rather, she informed me that the ATM networks of Canada, Russia and the United Kingdom have been compromised. I used the term class break as a question and she repeated that there has been a class break of the ATM networks in those countries. The ATM network in Canada has been compromised and as a result, using my ATM card over the Canadian network locked my account automatically. She informed me that this has been an ongoing issue for the last two weeks. When I asked why there was no media attention, she said she wasn't sure. I said it was a pretty big deal and she agreed.

Rumors/stories of a major security breach at Citibank are going around. People have having their cards shutoff all over the place.

Boing Boing: Citibank under fraud attack, customers locked out of accounts