November 3rd, 2015 by Elma Jane
While EMV represents a significant improvement in the way credit/debit card fraud is detected and prevented, some have confused EMV’s capabilities with the concepts of data security and PCI compliance.
Does EMV override PCI?
The answer is NO, EMV technology does not satisfy any PCI requirements, nor does it reduce PCI scope.
- EMV is counterfeit card fraud protection – it makes it more difficult to make use of stolen card data.
- EMV is not encryption – EMV does not encrypt the Primary Account Number (PAN) and therefore the card data must still be protected according to PCI guidelines.
- EMV only works for card present transactions.
If your business accepts credit or debit cards in a physical store or other face-to-face setting, you will need to implement the EMV technology and PCI standards. If you upgrade your terminals for EMV, consider adding point-to-point encryption (P2PE) capabilities to reduce PCI scope and protect data end to end. In addition, using tokens after authorization can prevent the card data from being used, should it be stolen.
Posted in Best Practices for Merchants, EMV EuroPay MasterCard Visa, Payment Card Industry PCI Security Tagged with: card data, card fraud, card present, counterfeit card, credit, data security, debit card, EMV, emv technology, fraud, p2pe, PAN, PCI, PCI Compliance, point-to-point encryption, Primary Account Number, terminals, tokens
May 19th, 2015 by Elma Jane
We’re now nearly midway through 2015, and payment security still remains a topic that stirs up great concern and confusion. While there is seemingly unanimous agreement on the need for heightened security, there’s uncertainty about those who are tasked with actually implementing it. Let’s dig deeper into EMV, P2PE and tokenization. How each will play a part in the next generation of securing payments, and how without properly working together they might just fall short.
Europay, MasterCard, and Visa (EMV) – A powerful guard against credit card skimming. EMV also uses cryptography to create dynamic data for every transaction and relies on an integrated chip embedded into the card.
Downside: For Independent Software Vendor (ISVs), the biggest downside of EMV is the complexity of creating an EMV solution. ISVs interested in certifying PINpads with a few processors face up to 22 months of costly work, and because there are a large number of pending certifications, processors will be backed up over the next few years.
It’s not impossible for an ISV to build EMV solutions in-house, but it’s difficult and unnecessary when there are plug-and-play EMV solutions available. These solutions include pre-packaged and pre-certified APIs that remove most of the need for research, the complexity and the burden of time and cost.
Point to Point Encryption (P2PE) – Secures devices, apps and processes using encrypted data with cryptographic keys only known to the payment company or gateway from the earliest point of the transaction, from tech-savvy criminals, jumping at their chance to intercept POS systems and scrape the memory from Windows machines.
How does a key get into card reader? Through an algorithm called derived unique key per transaction (DUKPT), or “duck putt.” DUKPT generates a base key that’s shared with device manufacturers securely, where output cardholder data is rendered differently each time a card is swiped, making it impossible to reverse engineer the card data. P2PE not only benefits the cardholders, but also the ISVs and merchants. PA-DSS certification was designed to address the problems created with cardholder data which is not encrypted.
Downside: P2PE isn’t cheap if an organization wants to do it in-house. The secure cryptographic device needed to manage the keys, Hardware Security Module (HSM), can cost $30-40,000 but when it’s built out, that total cost can jump to $100,000.
TOKENIZATION – The best way to protect cardholder data when it’s stored is using tokenization, a process which the PCI Security Standards Council describes as one where the primary account number is replaced with a surrogate value a token. For merchants dealing with recurring billing, future payments, loyalty programs and more, tokenization is critical.
Downside: Tokenization doesn’t prevent malware that’s remotely installed on POS devices. It’s possible, as seen with recent retail card breaches, for data to be stolen before it is tokenized. That’s why it’s essential to group tokenization together with P2PE and EMV to offer optimal security.
Posted in Best Practices for Merchants, Credit Card Security, EMV EuroPay MasterCard Visa, Payment Card Industry PCI Security, Visa MasterCard American Express Tagged with: (POS) systems, account number, billing, card, card breaches, card reader, cardholder, cardholder data, chip, credit card, data, DSS, EMV, EuroPay, gateway, Independent Software Vendor, ISVs, MasterCard, merchants, p2pe, payment company, payment security, payments, PCI, PINpads, point-to-point encryption, POS devices, processors, Security, security standards council, token, tokenization, transaction, visa
August 7th, 2014 by Elma Jane
Recent high-profile cyberattacks at retail giants like Target and Neiman Marcus have highlighted the importance of protecting your business against point-of-sale (POS) security breaches. Often, the smallest merchants are the most vulnerable to these types of cyberthreats. The latest of these POS attacks is known as Backoff, a malware with such brute force that the U.S. Department of Homeland Security (DHS) has gotten involved. The DHS recently released a 10-page advisory that warns retailers about the dangers of Backoff and tells them how they can protect their systems. Backoff and its variants are virtually undetectable low to zero percent by most antivirus software, thus making it more critical for retailers to make sure their networks and POS systems are secure.
How Backoff works
Backoff infiltrates merchant computer systems by exploiting remote desktop applications, such as Microsoft’s Remote Desktop, Apple Remote Desktop, Chrome Remote Desktop, Splashtop 2 and LogMeIn, among others. Attackers then use these vulnerabilities to gain administrator and privileged access to retailer networks. Using these compromised accounts, attackers are able to launch and execute the Backoff malware on POS systems. The malware then makes its way into computer and network systems, gathers information and then sends the stolen data to cybercriminals. The advisory warns that Backoff has four capabilities that enable it to steal consumer credit card information and other sensitive data: scraping POS and computer memory, logging keystrokes, Command & Control (C2) communication, and injecting the malware into explorer.exe. Although Backoff is a newly detected malware, forensic investigations show that Backoff and its variants have already struck retailers three times since 2013, the advisory revealed. Its known variants include goo, MAY, net and LAST.
Prevent a Backoff attack
To mitigate and prevent Backoff malware attacks, the DHS’ recommendations include the following:
Configure network security. Reevaluate IP restrictions and allowances, isolate payment networks from other networks, use data leakage and compromised account detection tools, and review unauthorized traffic rules.
Control remote desktop access. Limit the number of users and administrative privileges, require complex passwords and two-factor authentication, and automatically lock out users after inactivity and failed login attempts.
Implement an incident response system. Use a Security Information and Event Management (SIEM) system to aggregate and analyze events and have an established incident response team. All logged events should also be stored in a secure, dedicated server that cannot be accessed or altered by unauthorized users.
Manage cash register and POS security. Use hardware-based point-to-point encryption, use only compliant applications and systems, stay up-to-date with the latest security patches, log all events and require two-factor authentication.
Posted in Point of Sale Tagged with: (POS) systems, antivirus software, Apple Remote Desktop, Backoff, cash register, Chrome Remote Desktop, credit-card, cyber attacks, cybercriminals, data, data leakage, Department of Homeland Security, desktop applications, DHS, goo, LAST, LogMeIn, Malware, MAY, Merchant's, Microsoft's, Neiman Marcus, net, network security, network systems, networks, payment networks, point of sale, point-to-point encryption, POS, remote, retailer networks, retailers, security breaches, Splashtop 2, target
