. . that a thief can instantly drain your bank account - and you have no immediate recourse. You're going to have no money for some time, your checks will bounce, etc.
When traveling, renting cars, renting hotel rooms, etc, the vendor may put a hold on much more than is available in the account, but will be OK with a regular cc card. So they are useful but dangerous.
The last couple of days my bank card has been working as a debit but not as a credit. I just called today to find out why.
On the 10th I apparently bought $58.29 worth of something at a Winn-Dixe Liquor in Florida. No, I haven't been to Florida this month.
The bank put a hold on the card for credit transactions, but it was still good for debit because I needed the PIN. They just deactivated the card and are sending me a new one.
Damn, now everything I have set up with recurring payments has to be updated. What a royal pain in the ass.