This is the meme du jour, apparently. If you use Google to search an appropriate numeric range, you can turn up credit card numbers. For example, this Google search gets us to this page on (ironically enough) InnerWealth.com. Here we find a “customer number” which is also, unquestionably, a Visa account. I know, because I’ve got a Royal Bank Visa card that starts with the same four digits. No sign of the expiry date, so no illegal fun can be had. Here’s another one, another one, another one, another one and another one. These all may be fake or sample numbers, but if they’re not, people are deeply stupid.