Tether continues to play a key role in crypto enforcement. Over the past three years, they have frozen $4.2 billion USDT related to illegal activities, with most of the freezes occurring since 2023. This figure shows how regulators are increasingly relying on stablecoin issuers to restrict the flow of suspicious funds.

What’s interesting is the complex market dynamics behind all this. The supply of USDT has recently experienced a significant decline, dropping about $2.7 billion in the last two months. This is the largest contraction since the FTX collapse. Some analysts link this to tighter liquidity conditions, although Tether says it’s just a temporary shift in distribution. It’s fascinating to see how the combined demand and supply curves create pressure on the stablecoin amid increasing regulatory scrutiny.

Despite the decline, USDT still dominates. Currently, the circulating amount is around $189.7 billion. Tether also continues to expand cooperation with authorities. Recently, they helped the U.S. Department of Justice freeze nearly $61 million related to pig-butchering scams. In Turkey, they froze $544 million suspected of illegal gambling and money laundering.

Data from Elliptic shows that by the end of 2025, Tether and Circle have blocked about 5,700 wallets holding a combined $2.5 billion. Three-quarters of these addresses contained USDT at the time of the freeze. This indicates how stablecoin issuers now play a direct role in law enforcement, not just as service providers. Blockchain transparency meets centralized oversight, creating an ecosystem that’s more difficult for illegal activities, even though challenges remain.