Bitcoin's illicit uses are difficult to eliminate entirely. More realistic governance goals include reducing available space, increasing the cost of illegal activities, and making suspicious funds easier to identify, freeze, and trace. Since the Bitcoin network itself does not require identity, governance efforts typically focus on nodes where funds enter and exit the chain, on-chain monitoring, law enforcement collaboration, and cross-border regulatory衔接.
Why Complete Eradication Is Difficult
One of Bitcoin's core features is decentralization and permissionlessness: anyone can generate an address and receive funds without submitting an identity to the network. As of October 14, 2026, Bitcoin's price is approximately $81,000, with a circulating supply of about 20.098 million coins, corresponding to a market capitalization of approximately $1.63 trillion. On-chain statistics from the same period show that over half of the supply is held in addresses with unknown attribution. This means that even if centralized exchanges universally complete identity verification, a large volume of on-chain activity remains uncovered by exchange KYC alone.
Furthermore, funds can be moved through multiple transfers, cross-asset exchanges, platforms in different jurisdictions, and technical tools. Complete eradication would mean controlling all self-custodial addresses and cross-border flows, which is unrealistic from a technical, legal, and privacy perspective. Therefore, regulation and industry governance typically focus on risk stratification, suspicious activity reporting, and on-chain tracing.
Regulatory Framework: From KYC to MiCA
Anti-Money Laundering (AML) and Counter-Terrorist Financing (CFT) have become core requirements for global crypto regulation. Many jurisdictions require cryptocurrency service providers to implement "Know Your Customer" (KYC) procedures, linking transactions to real identities to detect tax evasion, terrorist financing, and other financial crimes.
The EU's Markets in Crypto-Assets Regulation (MiCA) fully came into effect on December 30, 2024, providing a unified framework for crypto-asset issuance, service provider authorization, operations, reserve and redemption management, and AML supervision. It has also become an important reference for other jurisdictions in developing their rules.
Different countries have adopted varying approaches. The United States, the United Kingdom, and Japan, among others, employ multi-layered regulation, treating Bitcoin as property or an asset and governing it through taxation, platform oversight, and AML rules. China, since 2021, has completely banned Bitcoin mining and trading, citing concerns about financial risks and potential illicit activities. A stricter prohibition path can reduce legitimate trading entry points but may also push some demand towards over-the-counter or gray channels.
Exchanges and Custodians: The First Line of Defense
Trading platforms are crucial entry points for funds into the crypto market and the easiest place for regulation to be implemented. Compliant exchanges typically need to complete user identity verification, transaction monitoring, risk list screening, and suspicious activity reporting. For institutional users, compliance capabilities not only reduce legal risks but also help secure partnerships with banks, payment providers, and institutional funds.
However, exchanges are not foolproof. Illicit on-chain funds can enter the compliant system through OTC trading, P2P networks, cross-chain bridges, or other asset exchanges. Therefore, platform risk control needs to be combined with on-chain analysis tools, payment institution monitoring, and law enforcement information exchange.
On-chain Analysis and Law Enforcement Tracing
The public ledger nature of blockchain is both a source of privacy concerns and a foundation for law enforcement tracing. Blockchain analysis companies like Elliptic and Chainalysis use AI and machine learning to identify illicit money flows, money laundering patterns, and untagged wallets. Industry practices in May 2024 showed that AI is being used to discover new illicit funding paths and abnormal behaviors.
A research perspective from December 2025 noted that Bitcoin's on-chain transactions are immutable, providing permanent clues for law enforcement agencies. Even if funds have been dormant for years or transferred multiple times, heuristic clustering algorithms and common-spend analysis can still help determine the ultimate destination of funds. This capability makes on-chain anonymity more accurately described as pseudonymity rather than absolute untraceability.
Illicit Activities Are Shifting Towards Stablecoins
When addressing illicit uses of Bitcoin, it's also important to consider changes in asset structure. A report released by Chainalysis in February 2026 stated that stablecoins have replaced Bitcoin as the most frequently used tool in cryptocurrency-related illicit transactions. The report also indicated that illicit cryptocurrency addresses received nearly $154 billion in 2025, a 162% increase year-over-year, with funds related to sanctioned entities showing particularly significant growth.
This means that setting compliance thresholds solely for Bitcoin is insufficient to cover the overall risk. Stablecoin issuers, exchange platforms, payment channels, and on-chain bridging services all need to be incorporated into AML and sanctions screening frameworks.
The Tension Between Privacy and Compliance
Some privacy advocates argue that KYC conflicts with the anonymity and decentralization ideals of cryptocurrencies. Excessive identification can lead to data breaches, financial exclusion, and expanded surveillance risks. However, a completely identity-free asset network is prone to being used for money laundering, fraud, ransomware, and sanctioned fund transfers.
Therefore, more sustainable governance typically involves requiring identity and traceability in higher-risk areas, while avoiding unnecessary restrictions on all ordinary on-chain activities. Technical approaches such as verifiable credentials and selective disclosure are widely discussed, but their actual implementation still depends on legal recognition, privacy protection, and regulatory coordination.
Multi-Party Collaboration Is Needed to Reduce Illicit Use Space
Governing illicit uses of Bitcoin requires collaboration among multiple entities: regulators set rules, exchanges and custodians perform KYC and suspicious transaction reporting, on-chain analysis companies identify risky addresses, law enforcement freezes and recovers assets, payment institutions cut off suspicious fund channels, and users should avoid participating in transfers of funds from unknown sources or those that circumvent regulation.
Before engaging in Bitcoin-related activities, ordinary users and institutions should first confirm whether it is permitted by local laws and avoid assisting in the transfer of suspicious funds. For a global audience, rules vary significantly across jurisdictions; an action that is legal in one market may be illegal in another.
