United States v. 113 Virtual Currency Accounts

CourtDistrict Court, District of Columbia
DecidedMarch 5, 2024
DocketCivil Action No. 2020-0606
StatusPublished

This text of United States v. 113 Virtual Currency Accounts (United States v. 113 Virtual Currency Accounts) is published on Counsel Stack Legal Research, covering District Court, District of Columbia primary law. Counsel Stack provides free access to over 12 million legal documents including statutes, case law, regulations, and constitutions.

Bluebook
United States v. 113 Virtual Currency Accounts, (D.D.C. 2024).

Opinion

UNITED STATES DISTRICT COURT FOR THE DISTRICT OF COLUMBIA

UNITED STATES OF AMERICA,

Plaintiff,

v. Civil Action No. 20-606 (TJK) 113 VIRTUAL CURRENCY ACCOUNTS et al.,

Defendants.

MEMORANDUM OPINION

The United States seeks the forfeiture of 145 virtual currency accounts containing funds

linked to alleged hacks of virtual currency exchanges by North Korean operatives. It alleges that,

following those hacks, these accounts were each involved in a conspiracy to engage in three types

of money laundering—concealment, promotion or international promotion money laundering—or

are otherwise traceable to such property. For the reasons explained below, the Court will grant the

United States’ motion for default judgment and order forfeiture of these virtual currency accounts,

referred to as the Defendant Properties. 1

Background

A. Virtual Currency

Bitcoin, Ether, and other so-called “cryptocurrencies” are types of virtual currency used in

online transactions. ECF No. 24 (“Sec. Am. Compl.”) ¶ 7. To send and receive funds, customers

use unique addresses that function like email addresses: one user may have many and may even

use a different one for each transaction. Id. ¶ 8. A customer must have a password, called a

1 The United States has dismissed Defendant Property 146 from this action. ECF No. 35. “private key,” to transfer funds held at an address. Id. ¶ 9. Customers often conduct transactions

on virtual currency exchanges, which are platforms offering trading between the U.S. dollar,

foreign currencies, and virtual currencies. Id. ¶ 11. Exchanges also commonly offer virtual

currency storage services to customers. Id.

Although transactions are recorded on a public ledger called a “blockchain,” the transacting

parties are usually anonymous because each transaction is labeled with a complex series of

numbers and letters, rather than individuals’ names or other identifying information. Sec. Am.

Compl. ¶ 7. Law enforcement can, however, identify the parties through analysis of the

blockchain. Id. ¶¶ 7, 12. Specifically, investigators create large databases that group transactions

into “clusters” based on patterns identified in transaction data. Id. ¶ 12. Some individuals hoping

to elude such analysis will conduct “peel chains.” Id. ¶ 15. A peel chain occurs when a large

quantity of virtual currency stored at one address is transmitted through a succession of other

addresses. Id. ¶ 13. During each transaction, a small, inconsistent amount of virtual currency is

“peeled off” into an exchange where the individual ultimately wants the virtual currency deposited.

Id. The transactions continue until all the funds originally held at the first address are peeled off

into the target exchange. Id. Sophisticated criminals often use peel chains comprising hundreds

of transactions to hide the path of funds on the blockchain. Id. ¶ 15.

B. The North Korean Hacks and Money Laundering

In a 2019 report, a panel of experts established by the U.N. Security Council identified a

series of hacks sponsored by North Korea targeting virtual currency exchanges. Sec. Am. Compl.

¶¶ 16–20. According to the panel, North Korean operatives routinely use large-scale cyberattacks

to infiltrate accounts hosted by exchanges and other financial institutions. Id. ¶ 17. They then

force transfers and launder stolen virtual currency through an elaborate series of transactions

before converting it into fiat currency. Id. ¶ 19. The attacks raise money for North Korea’s

2 weapons of mass destruction programs, with total proceeds at the time of the report estimated at

up to $2 billion. Id. ¶ 17.

This case arises out of the United States’ investigation of similar hacks of four virtual

currency exchanges, allegedly by North Korean operatives. Sec. Am. Compl. ¶¶ 2, 21. According

to the Second Amended Complaint, in late 2018, U.S. authorities learned that Exchange 1 had been

hacked and that the perpetrators had stolen almost $250 million in virtual currencies, including

Bitcoin. Id. ¶ 27. To begin the attack, a person pretending to be a potential customer contacted an

employee of the exchange. Id. ¶ 28. The employee unknowingly downloaded malware during the

interaction, thereby providing the hackers with remote access to private keys. Id. ¶¶ 28, 30. Once

the perpetrators used those keys to steal virtual currency, they covered their tracks by conducting

hundreds of automated transactions in a peel chain layering process where much of the currency

passed through, or was deposited into, the Defendant Properties. Id. ¶¶ 31–47.

Eventually, much of the stolen Bitcoin was deposited into four accounts on two exchanges

(Defendant Properties 56, 62, 67, and 70). Sec. Am. Compl. ¶ 59. These accounts belonged to

two individuals, Tian Yinyin and Li Jiadong, who have been indicted for money laundering and

operating an unlicensed money transmitting business in a separate case before the Court, United

States v. Tian, 20-cr-52 (TJK). 2 Id. ¶ 60. From 2018 to April 2019, Tian and Li engaged in

$100,812,842.54 in virtual currency transactions, consisting primarily of virtual currency traceable

to the hack of Exchange 1. Id. ¶ 62. After receiving stolen funds via peel chains from the North

Korean operatives, Tian and Li further laundered the money by moving it between each other’s

accounts and exchanging some for prepaid iTunes gift cards, a recognized method of money

2 In all, Tian and Li owned over two dozen of the Defendant Properties: 55–62, 65–80, and 83–84. Sec. Am. Compl. ¶ 100.

3 laundering. Id. ¶¶ 67, 70–71. The two then set up multiple accounts at Chinese banks where they

ultimately deposited the proceeds. Id. ¶¶ 64, 73.

Around December 2017, Exchange 2 announced that 17% of its total assets had been stolen

in a hack that the U.N. Security Council’s expert panel attributed to North Korean actors. Sec.

Am. Compl. ¶ 78–79. Some of Tian’s accounts were also used to launder the proceeds from the

hack of this exchange, as were other accounts that had been used before to send funds to North

Korean co-conspirator accounts. Id. ¶¶ 77, 81–82. About two years later, $48.5 million in virtual

currency was stolen from Exchange 3, a South Korea-based exchange. Id. ¶ 83. Over the next

several days, that money was transferred through multiple peel chains before being deposited into

various exchanges. Id. ¶ 84. For instance, a portion of the stolen currency was deposited into

Defendant Property 82 via several transactions about a week after it was stolen. Id. Some of the

currency ended up in other Defendant Properties. Id. ¶¶ 86–90. In addition, in summer 2018,

North Korean operatives stole about $30 million in virtual currency from Exchange 4, another

South Korean exchange, and funds from this hack were deposited into accounts that controlled

some of the Defendant Properties. Id. ¶¶ 36, 41.

C. Illegal Money Transmitting Business

As already noted, Tian and Li engaged in many transactions using funds traceable to the

hack of Exchange 1. Sec. Am. Compl. ¶ 62. To do so, they would convert virtual currency into

fiat currency for their clients in exchange for a fee. Id. Some of their clients were in the United

States, and they sometimes used United States financial accounts to provide conversion services.

Id. ¶ 98.

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