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.

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 alphabay Market link European authorities said on Tuesday.

Washington has announced sanctions against a cryptocurrency exchange it says has worked with ransomware attackers

German prosecutors say they have busted one of the world's biggest international darknet market platforms for child pornography, used by more than 400,000 registered members, including from the US, Australia and Canada.