Beginning Sept. 30, Visa will require merchants and related businesses to conduct wireless security scans to prove compliance with version 1.2 of the PCI Data Security Standard (PCI DSS) which is designed to safeguard cardholder data from wireless threats.

Security vendors are launching a gazillion products this week at RSA Conference 2010, but hidden in all of those press releases are a few nuggets that illustrate the big picture trends.

Companies that handle credit cards can expect to see revised security rules released in early October, according to the group responsible for maintaining the Payment Card Industry security standard for storage and processing of credit and debit cards.