Yes, for point-of-sale exploits, this would not work. But certainly there are companies that store CC information. Every time I go to Amazon, I don&#x27;t re-input my cc info. They must be storing it somewhere?<p>As for buying it back, see my comment about LE not needing to make such purchases for this to work. And if the CC companies know about the fake numbers, the process of verifying that the number works, would itself, inform of the breach.