(subtitle-Major credit card associations and financial institutions are saying little ) MARCH 09, 2006 (COMPUTERWORLD) - The continued refusal by major credit card associations and financial institutions to identify the source of a data compromise that has resulted in a wave of debit card fraud worldwide is fueling concerns about the scope of the problem. It is also shining a spotlight on what may be growing attempts by criminal gangs to try to compromise PIN-based card transactions, which have until now been considered extremely secure, analysts said. The immediate furor was ignited earlier this week by Citibank, which acknowledged that...