Security researcher Brian Krebs reported yesterday that Target was investigating a data breach "potentially involving millions of customer credit and debit card records." Target confirmed this morning that 40 million such records were stolen.
“Target’s first priority is preserving the trust of our guests and we have moved swiftly to address this issue, so guests can shop with confidence. We regret any inconvenience this may cause,” said Gregg Steinhafel, chairman, president and chief executive officer, Target. “We take this matter very seriously and are working with law enforcement to bring those responsible to justice.”
Since this was apprently being leaked to security researchers before they admitted it publicly, I guess Target's idea of "moved swiftly" is a little different to that of, oh, say, a quarter of the adult population of America.