Buzz has been building for the last week about what might be a new data breach at a credit-card processor. No, not Heartland, a different one. Now Computerworld is reporting that Visa claims there was no new breach. Whom to believe? "In actuality, Visa said in a statement issued today, alerts that it recently sent to banks and credit unions warning them about a compromise at a payment processor were related to the ongoing investigation of a previously known breach. However, Visa still didn't disclose the identity of the breached company, nor did it say why it is continuing to keep the name under wraps."