Business

Record-breaking Bitcoin tumbles on Yellen warning

Bitcoin tumbled Tuesday from its record-breaking run after US Treasury Secretary Janet Yellen warned that the "highly speculative" unit could be used for "illicit" purposes.

Business

Bitcoin goldrush sparks fears of speculative bubble

Bitcoin has enjoyed a record-breaking week after electric carmaker Tesla and Wall Street finance giants sparked a goldrush for the world's most popular virtual currency, but bubble fears persist.

Business

German police take down 'world's largest darknet marketplace'

A German-led police sting has taken down the "world's largest" darknet marketplace, whose Australian alleged operator used it to facilitate the sale of drugs, stolen credit card data and malware, prosecutors said Tuesday.

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