Unfortunately, even at home, debit cards must be protected like cash.
Credit, ATM and Debit Cards: What to do if They're Lost or Stolen
"ATM or Debit Card Loss or Fraudulent Transfers (EFTA). Your liability under federal law for unauthorized use of your ATM or debit card depends on how quickly you report the loss. If you report an ATM or debit card missing before it's used without your permission, the EFTA says the card issuer cannot hold you responsible for any unauthorized transfers. If unauthorized use occurs before you report it, your liability under federal law depends on how quickly you report the loss.
For example, if you report the loss within two business days after you realize your card is missing, you will not be responsible for more than $50 for unauthorized use. However, if you don't report the loss within two business days after you discover the loss, you could lose up to $500 because of an unauthorized transfer. You also risk unlimited loss if you fail to report an unauthorized transfer within 60 days after your bank statement containing unauthorized use is mailed to you. That means you could lose all the money in your bank account and the unused portion of your line of credit established for overdrafts. However, for unauthorized transfers involving only your debit card number (not the loss of the card), you are liable only for transfers that occur after 60 days following the mailing of your bank statement containing the unauthorized use and before you report the loss.
If unauthorized transfers show up on your bank statement, report them to the card issuer as quickly as possible. Once you've reported the loss of your ATM or debit card, you cannot be held liable for additional unauthorized transfers that occur after that time."
Our dd will be doing some traveling next spring and we have a "pre-paid' debit card. We can put as much or little cash as we wish on it and replenish as needed. It works like a credit card in stores and such as well as ATM machines. Only thing they are not good for are any transactions where a "hold" would need to be placed upon a portion of your balance, for example, hotel or car rental.