更新（UTC 5月15日下午3:10）：本文已更新以包括Tether的評論。

Tether的錢包黑名單過程中的這一滯後允許超過7800萬美元的非法資金在執法行動生效之前被移動

A lag in Tether’s wallet blacklisting process allowed over $78 million in illicit funds to be moved before enforcement actions took effect, according to a new report by blockchain compliance company AMLBot.

根據區塊鏈合規公司Amlbot的一份新報告，Tether的錢包黑名單流程的滯後使超過7800萬美元的非法資金在生效之前就可以移動。

The report, published May 15, claims that Tether’s address blacklisting on Ethereum and Tron usually becomes effective only after a considerable delay from when the process is initiated.

該報告於5月15日發布的報告聲稱，Tether的地址在以太坊上進行黑名單，而Tron通常只有在啟動該過程的延誤大量延遲後才能生效。

This delay stems from Tether’s multisignature contract setup on both Tron and Ethereum, transforming what should be an immediate compliance action into a window of opportunity for illicit actors, according to AMLBot.

根據Amlbot的說法，這種延遲源於Tether在Tron和以太坊上的多詞合同設置，將應該立即的合規行動轉變為非法演員的機會之窗。

Tether’s blacklisting procedure is a multi-step process with a first transaction effectively warning of the upcoming blacklisting. First, a Tether administrator multisignature transaction submits a pending call to “addBlackList” on the USDT-TRC20 contract.

Tether的黑名單程序是一個多步驟過程，首次交易有效地警告即將到來的黑名單。首先，繫繩管理員多簽名事務將懸而未決的呼叫提交給USDT-TRC20合同上的“ AddBlackList”。

This results in a public “submission” of the target address as a blacklist candidate. This is followed by a second multisignature transaction confirming the submission, resulting in an “AddedBlackList” emission, making the blacklisting effective.

這導致目標地址作為黑名單候選人公開“提交”。接下來是第二次多簽名事務，確認提交，從而導致“添加布萊克列表”排放，從而使黑名單有效。

A warning on incoming blacklisting

警告傳入的黑名單

In one example shared with Cointelegraph, an onchain transaction submitting a Tron address as a blacklist candidate took place at 11:10:12 UTC. The second transaction that actually enforced the action did not occur until 11:54:51 UTC on the same day, a 44-minute delay.

在與Cointelegraph共享的一個示例中，提交TRON地址作為黑名單候選人的OnChain交易發生在UTC 11:10:12。實際實施該動作的第二筆交易直到同一天11:54:51 UTC才發生，這是44分鐘的延遲。

In practice, this delay can be treated by owners of USDt about to be blacklisted as a notice to move their assets to avoid them being frozen. The report stated:

在實踐中，USDT的所有者可以將這種延誤列入黑名單作為移動其資產以避免被凍結的通知。報告指出：

The report says that “for blockchain-savvy attackers, these delays are golden.” By tracking Tether’s calls in real time, a fraudster can be instantly alerted that his address is being targeted. When asked by Cointelegraph whether the delay is a technical limitation or just a delay in the actions of a multisignature wallet key holder, AMLBot researchers said that they cannot determine it without knowledge of Tether’s internal procedures.

該報告說：“對於精通區塊鏈的攻擊者，這些延誤是黃金的。”通過實時跟踪Tether的電話，可以立即提醒欺詐者的地址是針對的。 Amlbot研究人員說，當Cointelegraph被Cointelegraph詢問延遲是技術限制還是延遲延遲的延遲，或者是延遲的延遲，而多準字母錢包密鑰持有人的行為是在不了解Tether的內部程序的情況下就無法確定它。

In a statement to Cointelegraph, a Tether spokesperson explained that “while any delay in enforcement should be examined, the idea that this represents a systemic loophole is both misleading and lacking perspective.” According to the company, it collaborates with law enforcement to freeze addresses on a daily basis. The statement continues:

繫繩發言人在給Cointelegraph的一份聲明中解釋說：“儘管應檢查執行的任何延遲，但這代表系統性漏洞的想法既具有誤導性，又缺乏觀點。”據該公司稱，它與執法部門合作每天凍結地址。聲明繼續：

According to Tether, the delay cited in the report stems from its multisignature governance model, which is said to prevent unilateral freezes and protect the system’s integrity. Tether admits that the model also introduces a delay on enforcement, noting that “it’s a trade-off for responsible responsiveness to a $100+ billion ecosystem,” with improvements on the way:

根據Tether的說法，報告中引用的延遲源於其多符號治理模型，據說這可以防止單方面凍結並保護系統的完整性。 Tether承認，該模型還引入了執法延遲，並指出“這是對100億美元生態系統的負責任響應的權衡”，並有所改善：

Related: Tether stablecoin issuer and Tron jointly froze $126M USDT in 2024

相關：2024年繫繩穩定發行人和Tron共同凍結了1.26億美元

Not just theoretical

不只是理論

AMLBot said its data shows that over $28.5 million in USDT was withdrawn during the lag period between the two transactions on the Ethereum blockchain. This amount of freeze avoidance occurred between Nov. 28, 1997, and May 12, 2025. The average amount moved during the lag exceeded $365,000.

Amlbot表示，其數據表明，在以太坊區塊鏈的兩項交易之間，在兩次交易之間撤回了超過2850萬美元的USDT。這種凍結數量發生在1997年11月28日至2025年5月12日之間。滯後期間的平均金額超過365,000美元。

Similarly, $49.6 million was reportedly withdrawn during freeze lag windows on the Tron blockchain, resulting in a total on Ethereum and Tron of $78.1 million. Exploiting this lag on Tron is not particularly rare, according to AMLBot:

同樣，據報導，在Tron區塊鏈上的凍結滯後窗口中撤回了4,960萬美元，導致以太坊的總數為7810萬美元。根據Amlbot的說法，在Tron上利用這一滯後並不是特別罕見的：

A Tether spokesperson said that “the $76 million referenced in this report should be put in context of the more than $2.7 billion in USD₮ that Tether has successfully frozen and blocked to date.”

繫繩發言人說：“本報告中提到的7600萬美元應計入超過27億美元的美元，該tether已成功地凍結並被封鎖。”

Tether has previously promoted its ability to freeze assets as a compliance feature. In 2024, Tether, Tron, and analytics firm TRM Labs cooperated to freeze over $126 million in USDT linked to illicit activity.

Tether此前曾促進其將資產作為合規性功能的能力。 2024年，Tether，Thron和Analytics公司TRM Labs合作凍結了超過1.26億美元的USDT，與非法活動相關。

Still, the AMLBot report raises questions about the effectiveness and speed of those enforcement actions.

儘管如此，AMLBOT報告仍提出了有關這些執法行動的有效性和速度的疑問。