Clock ticking for gas stations to pump up data security

Lower gas prices aren't the only thing that's new at the pumps these days. Data encryption tools are also becoming part of the picture.

Starting Jan. 1, Visa Inc. is requiring all new fuel-dispensing machines being installed at gas stations around the U.S. to support the Triple Data Encryption Standard, a mandate that is designed to make it harder for identity thieves to steal debit card data from gas pumps by shielding the personal identification numbers (PIN) of customers.

So-called card-skimming devices placed on gas pumps have been used to compromise payment card data in the past ? for example, in 2005 at stations operated by Wal-mart Stores Inc. 's Sam's Club division.

Visa's new requirement calls on gas retailers to ensure that all new pumps capable of processing debit card purchases are equipped with an encrypting PIN pad, or EPP, that supports Triple DES . Although Visa is the only credit card company mandating the use of the encryption technology now, the requirement is expected to become part of a broader specification for unattended point-of-sale systems that is being developed by the PCI Security Standards Council , which is responsible for the Payment Card Industry Data Security Standard and other data protection measures.

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