The Guardian reports that a US retailer has had a number of credit card details compromised.

Visa yesterday said it was cooperating with the American authorities on the matter. It also said it had issued a fraud alert to its member banks after it was informed of an "internal security breach" at the American retailer's database.

m-Travel.com reports that Arcot Systems and Diversinet have agreed to develop and co-market systems for mobile authentication of online credit card transactions.

Under the terms of the agreement, Diversinet will integrate its Passport SMS Messenger product into Arcot's TransFort e-payments authentication product suite, thereby extending the TransFort platform further in terms of support for SMS wireless access. The combined solution will provide banks and other card Issuers with a new mobile device channel for delivering Verified by Visa and MasterCard SecureCode online credit card transactions.