InvestNot yet confirmed elsewhere1 publisher2 min readPublished
ZachXBT paid a Chinese laundering network 5% an order to trace $12M in stolen Bybit funds
Investigator ZachXBT posed as a paying client of a Chinese laundering network and traced more than $12 million of North Korea's stolen Bybit funds. The trace covers under 1% of the roughly $1.5 billion taken, so the broker proved reachable even as recovery stayed small.
The Investor · Invest desk

What happened
- ZachXBT found his way in through more than 15 accounts in public Telegram and Discord groups that were seeking help with transactions tied to the stolen Bybit funds.
- On March 6, 2025, he funded a new Ethereum address with 349,700 USDC and began swapping it for Tron USDT through a contact using the Telegram alias Jimmy Green.
- The contact discussed planned fund movements before they happened, letting him check private statements against what later showed up on the public blockchain.
- By his own account, the information he gathered contributed to Tether freezing 442,000 USDT.
- In September the US Treasury sanctioned Xinbi Guarantee, a marketplace it said had processed more than $24 billion since 2022, and named North Korean hackers among its users.
Why it matters
- constraint A broker held together by reputation and repeat custom cannot screen hard for investigators without turning away the regular clients it values most.
- exposure Anyone converting stolen crypto into spendable money can be reached through the clients they accept, including a client paying 5% an order to watch them.
- decision The trace became frozen money only after Tether acted, so a stablecoin issuer's choice settles whether evidence gathered inside a laundering desk recovers anything.
Against the size of the theft, the recovered sums are small. More than $12 million traced out of roughly $1.5 billion stolen is about 0.8% [16]. The 442,000 USDT that Tether froze, by ZachXBT's account, is about 0.03% of the haul, or roughly three dollars in every ten thousand [17]. It is also about 3.7% of what he traced [18].
The cost side is the better puzzle. CryptoSlate treats the 349,700 USDC as capital committed to the trades, not a disclosed net loss [4]. The price of entry was the 5% he gave up on each completed order [1], plus the risk that the contact would disappear with the funds [9]. CryptoSlate did not report how many orders he ran. If the whole sum went through once, the fee was about $17,485 [15], and the frozen USDT is roughly 25 times that [20]. On that assumption one paying client bought a freeze for about four cents on the dollar, or rather, bought information that he says helped bring one about [7].
Naming the thieves was quick. The FBI attributed the theft to North Korean hackers, under the label TraderTraitor, on Feb. 26, 2025, and warned that the proceeds were being converted into Bitcoin and other coins and spread across thousands of addresses [2]. According to CryptoSlate, the client relationship gave him information that ordinary blockchain analysis could not provide [10].
The brokers may respond by vetting clients harder and giving up business to do it. Freezes may also stay rare, since each one needs an issuer willing to act [7]. The likeliest path, on Treasury's own evidence, is that the trade moves, as it did when criminals shifted from Huione to Xinbi after Huione was sanctioned [12]. Xinbi's more than $24 billion in processed volume since 2022, by Treasury's count [11], is about 16 times the Bybit theft [19].
We think the cash-out desk is the right place to look and a poor place to expect volume. CryptoSlate argues that converting stolen crypto into spendable money is the hard part of the crime, and that the payment services involved let investigators and regulators intervene [13]. The counter-thesis comes from the same Treasury record, in which a venue of that size was itself the replacement for a sanctioned one [12]. If 442,000 USDT stays the only freeze this line of work produces, the evidence supports a narrower claim: a broker can be watched from inside, while recovery stays near three dollars per ten thousand stolen [17].
What to watch
- Further Tether or other issuer freezes tied to the same broker network, the test of whether 442,000 USDT was a first batch or the whole result.
- A Treasury designation of a successor venue to Xinbi Guarantee, repeating the move it described from Huione to Xinbi.
- Disclosure of how many orders ZachXBT ran and his net loss, which would replace the single-pass fee estimate with the real cost of access.
Clarity's read
What the record supports and how the coverage leans. The claims behind it follow.
Reality
- Evidence45
- Adoption
- Insufficient
- Hype gap+25
- Incentives
- Insufficient
- Confidence40
Claim ledger
Ranked by verification strength, evidence, and original report placement.
- [1]
ZachXBT, a pseudonymous blockchain investigator, committed 349,700 USDC and accepted a 5% loss on each completed order while posing as a client of a Chinese laundering network.
- [2]
The FBI attributed the Bybit theft to North Korean hackers on Feb. 26, 2025, identifying the activity as TraderTraitor and warning that stolen assets were being converted into Bitcoin and other cryptocurrencies before being distributed across thousands of blockchain addresses.
- [3]
On March 6, 2025, ZachXBT says he funded a new Ethereum address with 349,700 USDC and began exchanging it for USDT on Tron through a contact using the Telegram alias Jimmy Green, accepting unfavorable exchange terms.
ReportedSupportedSource: ZachXBT, as reported by CryptoSlate2 sources— create a free account to open themView cited source - [4]
The 349,700 USDC represented capital committed to the transactions, not a disclosed net investigative loss; the 5% lost per order was the cost accepted for access to information.
- [5]
North Korean hackers stole around $1.5 billion from Bybit in February 2025.
- [6]
ZachXBT obtained information that helped him trace more than $12 million in Bybit-linked funds.
- [7]
According to ZachXBT's account, his work contributed to Tether freezing 442,000 USDT.
- [8]
ZachXBT says he saw more than 15 accounts in public Telegram and Discord groups seeking help with transactions tied to the stolen Bybit funds.
- [9]
The arrangement carried the risk that the intermediary could disappear with the funds.
- [10]
The relationship produced information beyond wallet addresses, including discussions of planned fund movements before the transactions occurred, letting ZachXBT compare private statements with activity later recorded on public blockchains; CryptoSlate describes this as information ordinary blockchain analysis could not provide.
- [11]
In September the US Treasury sanctioned Xinbi Guarantee, a marketplace it said has processed more than $24 billion in digital assets and fiat currency since 2022, and identified North Korean hackers among the illicit actors reported to have used its services.
- [12]
Treasury acknowledged that criminals tried to preserve their operations by moving from Huione to Xinbi after Huione was sanctioned.
- [13]
Converting stolen crypto into fiat or other purchasing power is the difficult part of the crime, and hackers rely on payment services and relationships that let investigators and regulators intervene.
- [14]
Without enforceable commercial protections, reputation and personal familiarity keep laundering relationships working, and a customer willing to conduct repeated transactions became more valuable to the person providing the service.
- [15]
If the full 349,700 USDC passed through once at a 5% loss, the fee would be about $17,485; the number of orders was not reported.
- [16]
The more than $12 million traced is about 0.8% of the roughly $1.5 billion stolen.
- [17]
The 442,000 USDT frozen is about 0.03% of the roughly $1.5 billion stolen, about three dollars per ten thousand, treating USDT at one dollar.
- [18]
The 442,000 USDT frozen is about 3.7% of the more than $12 million traced.
- [19]
Xinbi's more than $24 billion in processed volume is about 16 times the roughly $1.5 billion Bybit theft.
- [20]
On the single-pass assumption, the 442,000 USDT frozen is roughly 25 times the fee, or a fee of about four cents per dollar frozen.
Sources
1 independent publisher whose own reporting we read for this story.
- cryptoslate.comStealing $1.5B in crypto is easy, cashing out is the trap
1 article · October 10, 2026
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