When stolen data turns up on the dark web, this tech can find it fast
http://www.zdnet.com/article/stolen-data-on-the-data-dark-web-matchlight/
During advanced testing prior to its launch, the two co-founders said they identified 30,000 new credit cards go up for sale on the dark web, as well as 6,000 email addresses and passwords in a single day.
In one other case, on the first day in working with a major US banks, Matchlight picked up within half a minute a few thousand credit cards that had been put up for sale.
Another case for decentralized markets