Almost once a week I get a longish email from a reader who is certain they've figured out which online merchant got hacked and stuffed them with phony charges.
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Almost once a week I get a longish email from a reader who is certain they've figured out which online merchant got hacked and stuffed them with phony charges. I always reply that trying to figure out where your card may have been breached is a fool's errand -- basically, that learning the origin of most types of card fraud can be difficult even for the issuing bank to figure out. And that you're way better off just keeping a close eye on your statements. I can't believe this explainer is somehow still relevant almost 10 years later, but some things mercifully don't change that much.
Here's a look at the various forms of card fraud, how they are usually detected, and your chances of finding out.
https://krebsonsecurity.com/2015/01/how-was-your-credit-card-stolen/