Tether Faces Lawsuit Over $42.4M Frozen USDT Controls

A new lawsuit involving 42.42 million USDT challenges Tether's power to freeze assets without a court order following a Homeland Security request.

A dispute involving 42.42 million USDT could become a definitive test for the limits of control centralized issuers maintain over tokens once they enter circulation.

$42.4 Million Blocked Before Court Order

Narutawat Rukkhamachaloern and Nattawat Kasamvilas claim they acquired their USDT through secondary market transactions and had no direct customer relationship with Tether.

According to the complaint, the company blacklisted 10 addresses on October 30, 2025, following an informal request from an agent with Homeland Security Investigations.

The plaintiffs argue that no court order existed at that time to compel Tether to block the funds.

A federal seizure warrant was issued nearly four months later as part of a broader investigation into more than $61 million linked to alleged “pig butchering” investment fraud schemes.

Lawsuit Questions USDT Control

Tether possesses the technical capability to blacklist addresses, rendering the USDT held within them non-transferable. While this function allows the company to assist with sanctions, thefts, and investigations, it also distinguishes USDT from decentralized assets like Bitcoin.

The plaintiffs are specifically challenging the boundary between technical and legal authority. Their position maintains that Tether’s ability to freeze tokens does not automatically grant them the right to do so based solely on an informal request from a government official.

Accusing the company of conversion, trespass to chattels, and unjust enrichment, the plaintiffs are seeking to prevent the destruction of the blocked tokens and the issuance of equivalent USDT to a government-controlled address. These allegations have not yet been evaluated on their merits.

Market Risk is Primarily Legal

This case does not challenge the reserves backing USDT or Tether’s ability to maintain its dollar peg. Instead, the potential impact lies in how centralized stablecoin companies interact with law enforcement.

A ruling in favor of the plaintiffs could necessitate stricter procedures before assets can be frozen, potentially increasing legal costs for issuers. Conversely, a victory for Tether would reinforce the ability to preemptively block suspicious funds before formal legal proceedings conclude.

Consequently, the significance of this case extends far beyond the $42.4 million at stake. The litigation may help define where the rights of a stablecoin holder end and the power of its central issuer begins.