Sun Sentinel Palm Beach Edition

Lost passwords keep wealthy from their Bitcoin fortunes

- By Nathaniel Popper

Stefan Thomas, a German-born programmer living in San Francisco, has two guesses left to figure out a password that is worth, as of this week, about $220 million.

The password will let him unlock a small hard drive, known as an IronKey, which contains the private keys to a digital wallet that holds 7,002 bitcoins. While the price of Bitcoin dropped sharply Monday, it is still up more than 50% from just a month ago when it passed its previous all-time high around $20,000.

The problem is that Thomas years ago lost the paper where he wrote down the password for his IronKey, which gives users 10 guesses before it seizes up and encrypts its contents forever. He has since tried eight of his most commonly used password formulatio­ns — to no avail.

“I would just lay in bed and think about it,” Thomas said. “Then I would go to the computer with some new strategy, and it wouldn’t work, and I would be desperate again.”

Bitcoin, which has been on an extraordin­ary and volatile eight-month run, has made a lot of its holders very rich in a short period of time, even as the coronaviru­s pandemic has ravaged the world economy.

But the cryptocurr­ency’s unusual nature has also meant that there are many people who are locked out of their Bitcoin fortunes as a result of lost or forgotten keys. They have been forced to watch, helpless, as the price has risen and fallen dramatical­ly, unable to cash in on their digital wealth.

Of the existing 18.5 million Bitcoin, around 20% — currently worth around $140 billion — appear to be in lost or otherwise stranded wallets, according to the cryptocurr­ency data firm Chainalysi­s. Wallet Recovery Services, a business that helps find lost digital keys, said it has gotten 70 requests a day from people who want help recovering their riches, three times the number of a month ago.

Bitcoin owners who are locked out of their wallets speak of endless days and nights of frustratio­n as they have tried to access their fortunes. Many have owned the coins since Bitcoin’s early days a decade ago, when no one had confidence that the tokens would be worth anything.

But Bitcoin has no company to provide or store passwords. The virtual currency’s creator, a shadowy figure known as Satoshi Nakamoto, has said that Bitcoin’s central idea was to allow anyone in the world to open a digital bank account and hold the money in a way that no government could prevent or regulate.

This is made possible by the structure of Bitcoin, which is governed by a network of computers that agreed to follow software containing all the rules for the cryptocurr­ency. The software includes a complex algorithm that makes it possible to create an address, and associated private key, which is known only by the person who created the wallet.

The software also allows the Bitcoin network to confirm the accuracy of the password to allow transactio­ns, without seeing or knowing the password itself. In short, the system makes it possible for anyone to create a Bitcoin wallet without having to register with a financial institutio­n or go through any sort of identity check.

That has made Bitcoin popular with criminals, who can use the money without revealing their identity.

It has also attracted people in countries like China and Venezuela, where authoritar­ian government­s are known for raiding or shutting down traditiona­l bank accounts.

But the structure of this system did not account for just how bad people can be at rememberin­g and securing their passwords.

 ?? INA FASSBENDER/GETTY-AFP 2020 ?? About 20% of existing Bitcoin, worth some $140 billion, appear to be in lost or stranded wallets as owners can’t remember passwords.
INA FASSBENDER/GETTY-AFP 2020 About 20% of existing Bitcoin, worth some $140 billion, appear to be in lost or stranded wallets as owners can’t remember passwords.

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