chris klein, we appreciate it. >>> after the break, a developing story on the dark web.ere we have breaking news. >>> let's get to eamon javers. >> cnbc has learned that 1 million medicare credit card numbers have been released by a new russian-speaking criminal agency the group call itself all world cards is a so-called carding shopping, with stolen credit card information to sale for other crennels, but in an offer today, the new group, which comes with an angry-looking o octopus. think of this like the free samples they're trying to lure you in this analysis is coming from cnbc's cybersecurity consultant at q6. it's a large numb. the expect is they will start using d. and banks will probably see an impact. it's not clear where the card numbers came from. likely they have come from several recent cyberattacks dating from 2018 and 2019, and they say at least 20% are still valid. so -- we may hear more in the future. >> do we know whether all of these cards are american cardholders? or could they be global cardholders? >> we north there are american cards in this tranche