That's today's valuation on the bitcoin, not the valuation at the time they were stolen.
From the Organized Crime and Corruption Reporting Project, Tuesday June 13:
The U.S. government charged two Russian nationals Friday in the alleged 2011 theft of 647,000 bitcoins, which in today’s market would net more than US$16 billion.
According to recently unsealed indictments, Alexey Bilyuchenko, 43, and Aleksandr Verner, 29, conspired to launder hundreds of thousands of bitcoin stolen from Mt. Gox, the world’s largest cryptocurrency exchange platform at the time of the heist.
In September 2011, Bilyuchenko, Verner, and their co-conspirators allegedly launched a campaign of hacks against Mt. Gox’s Japan-based servers and gained access to thousands of its clients’ crypto wallets.
For almost three years, the group made out like bandits. Reported losses from the digital vault stand at roughly 647,000 bitcoins, which the conspirators transferred into their personal accounts, investigators said....
....MUCH MORE
