Tether, the world's largest stablecoin issuer, has frozen over $344 million in dollar-pegged tokens. This action was taken at the direct request of US law enforcement officials.

The freeze targeted two separate wallet addresses linked to unlawful conduct, though Tether provided no further details on the suspected activities or account controllers.

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Tether CEO Paolo Ardoino stated the company acts immediately when credible links to sanctioned entities or criminal networks are identified. The operation was coordinated with the Office of Foreign Assets Control (OFAC), a US Treasury agency.

This development signals active cooperation between a major crypto firm and federal authorities amid increasing regulatory pressure on the industry.

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The move has divided the crypto community. Critics argue that centralized stablecoin issuers hold a 'master switch,' questioning the extent of user control over their assets. This debate is rekindled following a recent $280 million exploit of the Drift Protocol, where Circle's USDC was routed through its own bridge without being frozen.

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Onchain analyst ZachXBT criticized Circle for not freezing USDC funds, emphasizing the need for clear standards on stablecoin issuer intervention during active hacks.