Bitcoin
Kelly Harper was arrested after journalists investigating a murder-for-hire site on the dark web reported her alleged cryptocurrency offer to Wisconsin authorities.
Investigators are looking into possible mysterious foreign bitcoin payments to key extremist figures, NBC reported.
Officials say Graham Clark, 17, masterminded the hack of accounts belonging to people like Barack Obama, Elon Musk, Joe Biden and Jeff Bezos.
Barack Obama, Jeff Bezos, Kanye West, Michael Bloomberg, Apple and Uber were also targeted in the massive cryptocurrency scheme.
WHAT'S HAPPENING
Researchers at the Technical University of Munich and MIT found the virtual currency is responsible for the same amount of carbon dioxide emissions as a large Western city.
An anonymous bitcoin wallet moving millions of dollars in cryptocurrency, according to one security researcher.
The state's treasurer said Monday that businesses can now pay for 23 different kinds of taxes with the cryptocurrency.
"Last Week Tonight" host breaks it all down.
There's always money in the Bananacoin stand.