Payment cards. For questions about storing credit card numbers, see also pci-dss. For questions involving the physical object, see also smartcard (if the card has a chip).

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0
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1answer
354 views

Lost CVV number automatically virus related?

If my credit card was used on Amazon, doesn't that mean someone has my cvv number? And would that mean I have a virus? Or is there another way they can get a CVV code off a credit card? I know it's ...
43
votes
8answers
6k views

What prevents web shop owners from misusing credit card data?

I don't own a credit card but read much about fraud with stolen credit cards. Since I don't own one, I don't know how you exactly buy online using your credit card, so please correct me, if I am wrong ...
48
votes
10answers
35k views

Can a steel woven wallet prevent RFID scanning of credit card information?

According to the Popular Mechanics article RFID Credit Cards and Theft: Tech Clinic, the fact that many new credit/debit cards have a RFID chip embedded on it, there is a risk (albeit, small according ...
0
votes
3answers
2k views

Is it PCI compliant to send credit card details to the server without saving them there?

Considering I use SSL the whole process. I have an IOS client that I want to use to enter the user's credit card details. I want to do the whole charging and processing on the server side, so I send ...
3
votes
1answer
326 views

Improving magnetic stripe card security with a “magnetic noise” hash?

I was reading the wiki on magnetic stripe cards when I stumbled across this sentence: "Magnetic stripe cloning can be detected by the implementation of magnetic card reader heads and firmware that can ...
2
votes
2answers
448 views

Would chip-and-PIN have prevented the Target breach?

Would chip-and-PIN have prevented the Target breach? As we all know, Target was breached and the hackers stole lots of credit card numbers. Target is now advocating for chip-and-PIN, as a way to ...
1
vote
1answer
468 views

PCI DSS - Recorded Phone Conversations

I am using the using the following image from FishNet Security as a sort of guide for the data flow diagram required by PCI DSS as defined by: 1.1.3 Current diagram that shows all cardholder ...
1
vote
0answers
85 views

Telling the difference between a prepaid card and credit/debit card

In order to stop people abusing free trials, we can make sure new users are not reusing data from existing users and therefore not just signing up with a new account every month. It is reasonably ...
9
votes
4answers
8k views

Make online payments anonymously? [closed]

Is there a service/company which allows you to make anonymous payments online ? This is how i want the service to work - Just like a credit/debit card. When you make the payment online, instead of ...
1
vote
0answers
94 views

Collecting Pre-Authorized Debit (PAD) & Credit Card (PACC) Agreements Electronically

I am looking for best practices regarding the collection of Pre-Authorized Debit (PAD) agreements electronically. The Canadian Payment Association only seems to provide the following statement ...
1
vote
2answers
1k views

When paying online with a credit card, what is “3D authentication” and is it reliable?

I tried making a purchase from http://www.laptop-batteries.ca/ but on the very last step the page reloaded with an error. A representative contacted me asking why I didn't complete the order and I ...
0
votes
1answer
131 views

How secure credit card order system with blank mail

I want to know how to secure credit card order with blank mail. My boss instructing to create new site like as below: 1) User send "Blank e-mail" to new site. 2) The site returns mail including ...
1
vote
3answers
214 views

Why do credit cards have chips, if I can purchase online without the chip being read?

Credit cards (and debit cards) are used in three different ways: In person + pin. The seller requires me to insert my card with the chip and input the PIN number to complete the transaction. In ...
0
votes
1answer
74 views

credit card security suggested scenario

I need to know the best scenario for a merchant inserting client's credit cards and expiry dates to process recurring payment for these cards. What I have in mind (and want your expert suggestions ...
2
votes
0answers
209 views

Which keys does a bank typically exchange with a card scheme?

I'm trying to understand the different EMV-related keys that are shared between a bank who issues EMV cards and a card scheme, such as Visa or MasterCard. I understand the bank would typically ...
5
votes
2answers
148 views

Modifying credit cards to increase security

If I use a credit card only for chip&pin/EMV transactions and possibly for contactless transactions, I don't need the following parts of the card. magnetic stripe embossed numbers etc signature ...
8
votes
2answers
16k views

Is it possible to clone an RFID/NFC card using a simple RFID reader, for future reuse and impersonation?

RFID/NFC technology is used in credit cards and many other personal identification applications. Is it possible/how easy is it to clone a card using a simple RFID reader? In other words, can the ...
8
votes
3answers
2k views

How does credit card authorization work

Few days ago I heard a professional scammer explaining how he exploits the banks, I cant find the right word to describe his actions, even the word scam does not fit as he is not breaking the law but ...
2
votes
2answers
84 views

Question regarding browser windows when integrating with 3rd party payment software

I've been told that when integrating with a 3rd party payment gateway, the other website's window should not be opened in an iFrame or a separate window - that the current application window itself ...
2
votes
2answers
79 views

In this instance, is code+security code really more secure than just a longer code?

On credit cards, the security code is printed on the back of the card (usually), on the premise that having a credit-card slip or photo of the front of the card won't allow you to use it fraudulently. ...
1
vote
1answer
118 views

My app is asking for card details, but does not stores them. Do I need PCI compliance?

I plan to build an Android/iPhone app. The app will contain a few forms and status screens. One of the screens will ask the user for their card details. Once they'll click submit they'll be sent over ...
-6
votes
1answer
152 views

Is www.cheap-lingerine.com safe to use my credit card on? [closed]

I want to make sure my information is safe. This website is openly china-oriented but says to secure card information with Secure Sockets Layer technology (SSL) on those pages that involve sensitive ...
2
votes
2answers
150 views

Are input fields that don’t have name=“” sent via the browser [closed]

Are input fields that don’t have name attributes susceptible to MITM attacks (w/o SSL) or any other attack? For example: <form action="" method="post"> <label ...
0
votes
1answer
136 views

Credit card fraud preventions [duplicate]

Ok lets say some one have clone my debit card here in Greece all debit cards have and stripe and chip and lets say in a way he knows my pin and all my information and he put the info on a blank card ...
3
votes
1answer
350 views

Why recommend “letters, numbers, and special characters” in a User ID?

Why do some sites recommend "letters, numbers, and special characters" in a username or User ID? When creating a User ID at the www.discovercard.com website, the "User ID Strength" indicator meter ...
1
vote
2answers
524 views

Does changing credit card numbers provide better security over time?

I've always contacted my bank and credit card provider every year and simply asked to change my credit card number itself (and get a new card). They do so without a hassle and I feel more secure in ...
1
vote
1answer
265 views

I left my debit card unattended — how exposed am I?

I yesterday visited a restaurant I usually visit, but it seems that after paying with my debit card, I accidentally left it there. Today (almost 24 hours later) I had realized that I didn't have it ...
0
votes
1answer
1k views

What can a hacker do with a card number without CVV? [duplicate]

From my experience a card can not be used for online payment without a valid CVV, then why is it still always emphasized that card number must be protected? What can a hacker do, assume that he has ...
0
votes
2answers
81 views

Isnt the 3D secure system essentially completely ineffective in avoiding fraud?

3D secure is a system where, after you enter your credit card details on a merchants site, you are redirected to a site hosted on the bank servers where you enter a OTP sent via SMS to complete the ...
1
vote
2answers
159 views

pci compliance and temporary files

Does storing temporarily a non-encrypted file containing some PANs violate pci requirements? (for example because it is being processed by an application, or to open it on a file editor)
4
votes
2answers
339 views

How do credit cards with chip+pin securely allow recurring transactions?

In Europe most cards use a chip+pin system to secure the card information. You put the card in te machine and enter a PIN number to decrypt the card information which is stored on the chip. ...
1
vote
2answers
259 views

What Can I Do While I'm Waiting for “Chip and Pin” Credit Cards?

For the second time in 8 weeks, one of my American Express (AMEX) card numbers was stolen. I do use the card online, but only at reputable (and SSL/TLS enabled sites). I use it in the real world, ...
3
votes
1answer
356 views

EMV(Chip) Cards - What's the point of having the chip card communicating directly to the authorising server? & Clarification of CDA in EMV

Ok I understand from my research that the Chip Card creates an AC Key(MasterKey+AccNumber) to communicate with the authorizing server securely (3DES key to have encrypted communication) but I don't ...
2
votes
2answers
189 views

What's the point of EMV when only the card is needed to shop online? [duplicate]

In many countries, EMV is used to prevent credit and debit cards being cloned. But given that it's possible to perform online transactions using the details printed on the card, how does it add ...
1
vote
2answers
199 views

Why is filling up at the gas pump require a quick scan of the Credit/Debit card?

Always wondered about this. I had a friend tell me it's to make sure your information can't be stolen as easily on the credit card, but I will admit I am a bit skeptical of his claims. At most gas ...
1
vote
1answer
157 views

How much information is released when paying with a debit card

How much information is released when paying with a debit card? Is it possible for a vendor to grab your name and address from your debit card and send you things in the mail?
14
votes
4answers
11k views

Is Visa PayWave secure?

Recently (well, a few months or even a year ago), my bank, here in Australia, introduced this PayWave technology to their Visa debit cards. They claim it's secure, but all they talk about is their ...
6
votes
4answers
2k views

How can I convince my customers not to send Credit Card data over email?

My wife and I run an online business. For a long time we would accept credit cards over our website, and cash or bank drafts in person. However, as time went on my wife picked up the Square to process ...
1
vote
1answer
647 views

is it illegal to share customer credit card data

I have an app where users can enter credit card data and it is stored using a 3rd party toservice like BluePay or Authorize.net, I do not and will not save it in my system. Trying to get this point ...
0
votes
2answers
330 views

How do gift card resellers prevent sellers from re-using pin and card numbers

There are multiple gift card reseller sites that buy your gift cards and resell them at discounted price. I was wondering how these sites prevent sellers from reusing the pin and card number after it ...
1
vote
2answers
93 views

Security of Shared Corporate Credit Cards

We are a medium sized company. Recently, one of the representatives of the finance department raised a question about the use of credit cards to shop on-line among different departments in our ...
0
votes
2answers
136 views

Can website see my payment information?

So I decided to purchase a service in website which only accepts payments where I need to enter my debit card information. Now connection is secured with TLS 1.0, so no 3rd party can observe my ...
3
votes
1answer
298 views

How easy is it to make a malicious bank/identity card?

I recently got a magnetic card reader that plugs into my computer because I was bored. I decided to scan my ID and bank card through it and I was surprised to see my ID number/bank card number show up ...
2
votes
0answers
82 views

Should I cancel my current credit card because of heartbleed vulnerability? [duplicate]

I recently looked at my local credit union bank and they said that their site is not vulnerable to heart bleed. However, I have used my credit card in many websites such as grubhub, amazon, some ...
4
votes
2answers
227 views

Are invalid card numbers under PCI compliance

If a merchant sends an invalid card number to the bank, will the bank have to secure the information to be PCI compliant?
2
votes
1answer
86 views

How to protect myself from future fraud? [closed]

Recently, I had my credit/debit card from my bank "stolen." The thieves somehow got my card number and information and took quite a bit of money from my account. Fortunately, I was able to recover it ...
0
votes
1answer
315 views

Is it safe to recycle unshredded credit card receipts?

Is it safe to recycle unshredded paper credit card receipts? Can identity theft be helped by data disclosed on most vendor's receipts?
0
votes
1answer
153 views
2
votes
4answers
960 views

Storing credit cards to use for purchases on customer's behalf

My client physically makes online purchases (through various websites) on his customer's behalf using their credit cards. His clients have basically said "here's my credit card, buy what you need to." ...
1
vote
3answers
2k views

Bank cards - chips vs mag stripe security

In this thread: Why are chips safer than magnetic stripes? the answers all seem to be that the chip cards are far more secure and difficult to copy. Here is my problem, and my question. A couple of ...