Showing posts with label credit card security. Show all posts
Showing posts with label credit card security. Show all posts

Oct 5, 2007

[Geeky Advice] Why You Should Ask for a Receipt

Flickr: sallylondon - Receipt


Receipts are essential to any business transaction although most of the time, you can't help but consider them to be useless trash. Unless you need to liquidate your expenses for the office or your folks, very few people keep their receipts in this country - some don't even bother claiming them from the cashier. Since tax computations aren't as complicated here, we just don't bother.

But they are very important and it pays to keep a close eye on these little pieces of paper. Here's a few good reasons why you should always ask for your receipt:

Track Your Expenses - While I know this sounds cliche, but there's no going around it. A primary reason to keep your receipts is to help you understand just how much you're spending. Some people think designing a budget is as easy as setting a fixed amount per spending category and try to stick to it. I find it's also important to first understand how much you're spending now. Track things on a spreadsheet on your computer or in a traditional ledger if that works better for you. The results may surprise you like just how much you spend at specialty coffee joints or if you're really saving by having your laundry done elsewhere.

Keep the Cashier Honest - People make mistakes, that's a given. You could say it's part of human nature. Knowing this, why do we allow ourselves to be fooled time and time again. Always check your receipt to ensure you're paying for the right items or getting the discounts promised at the rack. While it may say 20% above the item, sometimes cashiers don't remember the correct discount mark-downs or the right item codes and strange things start creeping onto your receipts.

Help the Tax Bureau - A lot of smaller stores and restaurants try to get away with paying less in terms of income taxes by not tracking all sales on receipts. Copies of receipts but be available to the tax bureau and the totals of those receipts are used to compute the total income taxes those business will pay. Thus not having a receipt for your transaction is just as good as pretending it never happened, thus it doesn't have to be taxed. Fair is fair right? If you have to pay taxes on your hard-earned money, so should they. Besides, less taxes collected now may mean an increase in tax rates for all of us in the future.

And my most important reason for getting a receipt:

Protect Your Personal Data - It's great that credit card companies make sure their machines obstruct most of your card number so you can only see the last four digits. However if you check the tape receipts for your purchases, you might be surprised to see your entire credit card number at the bottom. For some reason, most cash registers in the Philippines record and print your complete card number including card type and expiration date - certainly not information you want just anyone to have. Be sure to shred or tear up your receipts when you do eventually throw them away, especially when any personal data - even just your name - are present on the receipt.

Seriously - a little effort goes a long way to better financial planning and for securing yourself from another avenue for identity theft. I'm sure you have your own reasons - I'd love to hear yours as well. Either way, the point remains very clear - Always ask for a receipt!

Photo linked from sallylondon's photostream.

Aug 28, 2007

[Security] POS devices still insecure

Joyfulchicken of Chicken Mafia recounts what is purportedly said to be common amongst Citibank credit card users - fraud:

When the Citibank person asked me if I had used my card yesterday, I just sighed knowingly and said, "No. What is it this time?" Well, someone bought 16,231.50 pesos worth of stuff in Ace Hardware SM Manila using a clone of my card. Whoa, that's around $350. I wonder what the guy bought. 10 of these perhaps?

Anyway, Citibank faxed over a dispute form for me to sign. My card has been canceled, and a new one will be sent to me in a few days. The process is still annoying, but it's relatively painless. It seems that Citibank is getting more and more efficient at handling credit card fraud. I guess they've been getting a lot of practice.

Maybe I share part of the blame for not learning my lesson from four years ago. Last Saturday evening, I foolishly filled up at a random gas station in the middle of nowhere. And now this happens. Hmm, is there a syndicate of credit card-stealing gas station attendants? More evidence that oil companies are vortexes of pure evil....


Well, he's no joyful chicken at the moment. And you will be joining him, if you are not careful.

The Internet Storm Center reports on vulnerabilities and security problems regarding point-of-sale (POS) devices (PDF of the white paper here). The white paper asserts that while security risks are known since Heaven knows when, credit card companies and retailers are slow in addressing them, and it criticizes the actions taken as either inadequate or too late.

As for now, here are some steps in securely using credit cards:

1. Use credit cards at stores that take several steps in the process. For example, National Bookstore requires the credit card holder to present a valid ID before the transaction is processed. SM Supermarket, SM Department Store, and Music One do not demand for IDs. (If you know retailers who do not demand IDs, list them down in the comments.)

2. When paying using credit cards, make sure you see where it is to be swiped. That means, do not use credit cards in restaurants and gasoline stations.

3. Shop using cash. This way, you can stick to your budget.

Why can't they require PINs for credit cards?