Every User of This Hacked Bitcoin Exchange Is About to Lose 36% From Their Account

August 8, 2016, 4:56 PM UTC
This May 1, 2014 photo taken in Washington, DC shows a bitcoin medal. Bitcoin uses peer-to-peer technology to operate with no central authority or banks; managing transactions and the issuing of bitcoins is carried out collectively by the network. AFP PHOTO / Karen BLEIER (Photo credit should read KAREN BLEIER/AFP/Getty Images)
Photograph by Karen Bleier — AFP/Getty Images

Bitcoin believers don’t want to share the pain.

The Hong Kong-based bitcoin exchange that lost roughly $72 million in a cyberattack last week has decided to spread its losses among its users.

Bitfinex, one of the world’s largest bitcoin exchanges, has decided to shave off just over 36% of each of its users’ accounts to make up for its losses, rather than consolidate the deficit to users who had lost bitcoins in the hack.

The haircut doesn’t apply to just bitcoins, but also cash.

“After much thought, analysis, and consultation, we have arrived at the conclusion that losses must be generalized across all accounts and assets,” the exchange wrote in a lengthy blog post Saturday. “Upon logging into the platform, customers will see that they have experienced a generalized loss percentage of 36.067%.”


The firm explained that users would deal with a similar situation if Bitfinex chose to liquidate. But Bitfinex did not reveal how it had decided the 36% figure, noting that it would explain the methodology in full in a separate announcement.

Bitfinex users were predictably sour when they took to Twitter in protest of the haircut:

Bitfinex did leave some room for hope among its users in the blog post though.

The troubled exchange gave an “IOU” to users, saying it had given each customer a token recording their discrete losses. Those tokens will “remain outstanding until redeemed in full by Bitfinex or possibly exchanged—upon the creditor’s request and Bitfinex’s acceptance—for shares of iFinex Inc.”

Bitfinex is currently discussing options with potential investors to compensate their users’ losses “fully” with potential investors—though nothing concrete is likely to materialize in the near term.

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