Ultimately MasterCard uses blockchain technology for everyday use, quoted from private key. A good news for the world of cryptocurrency in general. Can you provide the link source of the article?
Here you go:
https://cointelegraph.com/news/mastercard-files-patent-for-blockchain-system-to-secure-card-paymentsIt seems that this news is just the hype around their patent filing. Expect anything from 3 to 5 years before anything happens on the ground. Maybe, even 10 years, because of all the extensive testing needed before they can deploy it live on production basis.
It doesn't matter if it's 1, 5 or 10yrs the point is that they're plan on doing it!
That's awesome. Blockchain tech is here to stay and sky is the limit.