Has anyone ever hacked into your checking account(via debit card)?

Crooks got into our's last week and made 4 'purchases'. My wife checked our account online Friday morning and saw the transactions, called the bank right away and they had already had the account 'hot carded'(shut down). A couple more 'purchases' were attempted while they canceled her card.


My question is, did the hack occur online or from somewhere in town?

And how in the hell do they do it?


Thanks for any advice.