By Tom Wilson

LONDON, Feb 12 (Reuters) - The kingpin or kingpins of the world's biggest illicit credit card marketplace have retired after making an estimated fortune of over $1 billion in cryptocurrency, according to research by blockchain analysis firm Elliptic shared with Reuters.

The "Joker's Stash" marketplace, where stolen credit cards and identity data traded hands for bitcoin and other digital coins, ceased operations this month, Elliptic said on Friday, in what it called a rare example of such a site bowing out on its own terms.

A lawyer for the self-proclaimed 'Crocodile of Wall Street', Heather Rhiannon Morgan, 31, and her husband Ilya 'Dutch' Lichtenstein, 34, claim neither of them are 'flight risks' because Morgan has frozen embryos in the city.

By Mark Hosenball

WASHINGTON, Oct 26 (Reuters) - An international operation targeting trafficking in opioids on a clandestine part of the internet called the darknet market has led to about 150 arrests in the United States and Europe and the seizure of drugs, cash and guns, U.S.

and European authorities said on Tuesday.

A New York couple dubbed 'Bitcoin Bonnie and Crypto Clyde' arrested on charges of laundering $4.5 billion in stolen Bitcoin led an existence 'pulled from the pages of a spy novel,' prosecutors have said.