Freezing as a function: why USDT is not your asset, but a control tool
The market capitalization of USDT is approaching $186 billion, and for millions of people worldwide, this stablecoin has become synonymous with the digital dollar. However, behind the illusion of decentralization lies a harsh reality: the token's issuer has complete control over user funds. In just the last six months, Tether has blacklisted 2,362 addresses on the Ethereum and TRON networks, freezing assets worth $1.64 billion. Officially, this is a fight against hackers and scammers. In reality, it demonstrates that even on a non-custodial wallet, you are not the full owner of your tokens.
The freezing mechanism is embedded in the USDT smart contracts themselves. The functions addBlackList, removeBlackList, and destroyBlackFunds allow Tether not only to block the sending of tokens from an address but also to irreversibly burn them and then reissue an equivalent amount on another wallet. This turns USDT into a promissory note rather than an independent asset. The user holds the private keys but not the rules of the token.
The initiators of the blocks are law enforcement agencies. The T3 FCU unit, created by Tether in collaboration with TRON and TRM Labs, has frozen over $450 million across 23 jurisdictions since September 2024. The freeze occurs without warning and without the right to appeal before it is applied. Analytical companies like Chainalysis assign risk levels to addresses, and random users whose coins once passed through a "dirty" address may fall under restrictions.
Why Bitcoin is different
Bitcoin has no administrator, no blacklist function, and no "big red button" to destroy funds. At the protocol level, there is simply no one to execute a freeze request. This makes the first cryptocurrency the only major digital asset that does not depend on decisions by an issuer, regulator, or bank.
However, Bitcoin's privacy is a myth. All transactions are recorded in a public ledger, and analytical systems can track them years later. Tools like CoinJoin or centralized mixers exist to break on-chain links, but each has its drawbacks: CoinJoin is easily identifiable, and centralized services require trust in the operator.
A more advanced approach is offered by solutions that work with verified clean coins from trusted investors. For example, Mixer.Money does not mix funds from different users but uses an algorithm that breaks the direct link between incoming and outgoing transactions. In "Full Anonymity" mode, coins are split into random parts in a premixer and sent to independent investors, while the sender receives an equivalent amount on two new addresses that are not on-chain linked to the original wallet.
My expert conclusion: USDT is not a stablecoin in the classical sense, but a node in the global financial surveillance system. Diversifying among different stablecoins only dilutes dependence on one company but does not fundamentally solve the problem. Bitcoin remains the only asset that cannot be frozen, seized, or burned by a third party's decision. However, its use requires a conscious approach to privacy—otherwise, the public ledger will make your financial history transparent to everyone.