AirTran Airways, an Orlando, Fla.-based low-fare airline, has become the third merchant to agree to pilot Acculynk Inc.'s PaySecure Internet PIN-debit product. Acculynk enables PIN-debit purchases online by integrating its PaySecure software into a merchant's online-checkout system. Atlanta-based Acculynk plans to announce PaySecure partnerships with three other merchants by September, Nandan Sheth, Acculynk president, told CardLine sister publication ATM&Debit News last month. AirTran customers can choose the PaySecure option during online checkout. The airline tells customers debit cards can be used for a PIN-based purchase. Cardholders use their computer's mouse to enter their four-digit PINs into an Acculynk virtual PIN pad that appears on the computer's monitor. Acculynk also is conducting PaySecure tests with Metavante Technologies Inc.'s NYCE, Fiserv Inc.'s Accel/Exchange and Discover Financial Services' Pulse networks (CardLine, 3/24). Two online retailers are accepting PIN-debit cards online using PaySecure: ShoppersChoice.com, a luxury-cooking retailer, and 2Checkout.com, an authorized reseller for online retailers. Elavon Inc., which processes transactions for AirTran and ShoppersChoice.com, was the first processor to support PaySecure, according to Acculynk. Elavon did not respond to a request for comment by CardLine's deadline. Merchant e-Solutions Inc. processes transactions for 2Checkout.com.