Never lend or hand over your card to anyone, or allow them to examine it under any circumstances. The card may be swapped without you noticing this;
Never keep your pin number with the card, thus reducing the risk of loss or robbery.
If your card is stolen, lost or mislaid, call your bank’s Customer Service Unit immediately and have them cancel the card. In case of robbery, file a police report at the nearest precinct;
If your hard gets stuck in the ATM, do not enter your pin number, press the keys "CANCEL” or “QUIT”. Call the bank immediately or seek the help of an employee properly identified, if you are using the ATM in a bank branch. Try using the booth telephone to report the fact. If it’s not working, it could be an attempt at a scam. NEVER use the telephones of strangers, especially cell phones, to communicate with the bank, as your account and pin number data are logged in the device’s memory. Moreover, you may not be talking to a representative of the bank;
Be especially careful with accidental bumps and encounters, which may lead you to temporarily lose sight of your magnetic card. If this happens, check that the card you have is actually yours. If not, call the bank immediately and have them cancel the card;
When making payments with your card, don’t let it get too far out of your control and take care so that no one can see you entering your pin number.
Always ask for your copy of the sale and check the printed amount of the purchase;
When going out, only take cards and check books that you’re actually going to use. That way you avoid loss or theft;
When traveling, if you aren’t using your card, leave it in the hotel strongbox;
NEVER use your card to make purchases on unfamiliar sites.