A Crucial Clue in the $4.5 Billion Bitcoin Heist: A $500 Walmart Gift Card

Federal investigators spent years hunting for clues in the 2016 hacking of the Bitfinex cryptocurrency exchange, when thieves stole bitcoin now worth $4.5 billion. In the end, what helped lead them to two suspects was something much more quotidian: a $500 Walmart gift card. From a report: That card and more than a dozen others like it, including for Uber, Hotels.com and PlayStation, were linked to emails and cloud service providers belonging to a young Manhattan couple, Ilya "Dutch" Lichtenstein and Heather R. Morgan, according to a criminal complaint. Authorities arrested the couple after seizing $3.6 billion worth of bitcoin allegedly in their control -- the Justice Department's largest financial seizure ever. New details have since emerged about the investigation, in particular how it took advantage of not only advanced forensic tools but also the growing push to rein in crypto crime, including by the industry itself. The discoveries would have been less likely to happen around the time of the hack, when bitcoin was far outside the mainstream of the financial world.

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