SAN JOSE, Calif. Its not just consumers who have to make hard choices when paying with plastic.
Credit card companies choose to scrutinize some bits of information for signs of fraud while ignoring others. And those decisions are made in a fraction of a second when approving or denying a sale.
Visa, which operates the worlds biggest electronic payment network, said last week that it is now catching more fraud because its developers have figured out ways for the software to look for more signs of bad behavior at once.
Some of the variables include the speed of transactions on a particular card, the time of day, the physical distance between transactions and the type of store.
Nancy Hilgers, Visas head of global risk products, said that earlier versions werent able to analyze as many data during a purchase. In some cases, the check was limited to just two of those elements at a time. In the interest of speed and because of limitations of the technology, Visa was letting some criminals slip through the cracks.
The new software, which rolled out in September, can combine more than a dozen different variables. Hilgers said thats important because the ability to sift through more data increases the odds of catching a fraudulent purchase before its approved.
Visa says upgraded software will allow Visa to spot a greater percentage of fraud. Detection of cross-border fraud, which Visa said it looked at intently for the latest iteration, shows major gains.
Cross-border fraud can be as simple as criminals using stolen U.S.-issued cards at stores in other countries, or as complex as tricking banks in other countries that theyre legitimate businesses so they can pull money out of accounts by creating fake transactions.
David Fish, an analyst with the Mercator Advisory Group who was briefed on Visas plans, said criminals have been exploiting weaknesses in the way the card brands have handled cross-border and high-speed fraud.
High-speed fraud can include hackers breaking into legitimate payment processors computer networks to test batches of stolen card numbers in quick succession to make sure they work. Those tests involve small transactions. Visa says it is now better at identifying them.
Article source: http://www.heraldnet.com/article/20110109/BIZ/701099941/0/biz
Category: Identity Theft Watch