Cryptocurrency was born from the idea of financial freedom beyond government reach, but some events have put that ideal to the test. From Canada invoking emergency powers against protesters’ Bitcoin donations to global authorities sanctioning blockchain addresses, the question arises: Can governments actually freeze crypto assets?
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In early 2022, Canadian authorities obtained a court order to freeze crypto wallets tied to the “Freedom Convoy” protests, only to be met with a blunt lesson in crypto fundamentals. The wallet provider Nunchuk responded that they had no ability to comply: they held no user funds or private keys – “We do not hold any keys. Therefore, we cannot freeze our users’ assets… This is by design.”. They even quipped, “When the Canadian dollar becomes worthless, we will be here to serve you, too.”
Yesterday, the Ontario Superior Court of Justice sent us a Mareva Injunction, ordering us to freeze and disclose information about the assets involved in the #FreedomConvoy2022 movement.
Here is our official response. pic.twitter.com/iuxliXhN5y
— nunchuk_io (@nunchuk_io) February 19, 2022
This dramatic standoff highlighted the core tension examined in this article: the difference between what legal authority can demand and what technical control is possible. It also explores how governments attempt to freeze crypto – what tools they use, how laws in the US, UK, Switzerland, Japan, and India empower (or limit) such actions – and why assets on centralized exchanges are far more vulnerable than those in self-custodial wallets.
By separating legal power from technical reality, this article explains where governments can effectively restrict access to crypto, and when control remains primarily in the hands of individual users.
Cryptocurrency exists in two basic forms of custody: on a centralized platform (like an exchange or hosted wallet service) or in a self-custodial wallet (where only the user holds the private keys). This difference is crucial in determining whether a government can “freeze” the asset.
If your Bitcoin or tokens sit in an account on a centralized exchange (e.g. Coinbase, Binance), they are effectively under the control of that company. Legally, these companies can be compelled to comply with government orders. In practice, this means authorities can serve a court order or directive to the exchange to lock a user’s account or freeze certain funds.
During Canadian protests, Kraken CEO Jesse Powell went so far as to urge users to move crypto off exchanges at that time, warning that his exchange would have to comply with any legal freeze requests and that self-custody was safer.
100% yes it has/will happen and 100% yes, we will be forced to comply. If you're worried about it, don't keep your funds with any centralized/regulated custodian. We cannot protect you. Get your coins/cash out and only trade p2p.
— Jesse Powell (@jespow) February 18, 2022
In custodial settings, crypto isn’t very different from a bank account balance, it’s an entry managed by a company that can be ordered not to refuse your access to it.
Indeed, cryptocurrency compliance firms note that exchanges routinely freeze or restrict accounts upon suspicious activity, in line with regulations. They may file a suspicious activity report, request user clarification, and even freeze the user’s funds while investigating. In short, whenever you entrust coins to an intermediary, those coins are only as accessible as the intermediary deems them to be – and regulated intermediaries must obey the orders of their governments.
Conversely, if you hold crypto in your own wallet (e.g. a hardware wallet, a mobile wallet app like Nunchuk or MetaMask, or any address where you control the private keys), it’s a different story.
Here, there is no centralized authority that can be compelled to freeze the assets – the funds are recorded on a public blockchain and only the private key holder can authorize transfers.
Governments cannot “reach into” the blockchain and pluck those funds or stop them from moving. The Canadian case demonstrated this: the court issued a broad injunction to freeze convoy-related crypto, but self-hosted wallets were beyond direct reach. Nunchuk’s response, basically educating the court about how private keys work, made it clear that they technically could not comply, even if they wanted to.
Unable to comply doesn’t necessarily mean being immune from direct consequences, however. Governments can’t magically freeze a hardware wallet over the internet, but they have other means to exert pressure, as you’ll learn later in this article.
The key point is that the locus of control is different. With exchange-based funds, the government’s battle is with a company’s legal department; with self-hosted funds, the battle is with physics and cryptography (or with the individual holder themselves).
Governments worldwide have adapted a range of legal tools to freeze or seize cryptocurrencies when they suspect illicit activity or seek to enforce sanctions. It’s important to distinguish the legal authority to freeze assets from the practical execution of it. We’ll examine how different legal mechanisms are used in major jurisdictions, including some notable examples:
Cryptocurrency is legally recognized as property in many jurisdictions. When authorities allege that crypto is linked to criminal activity, courts can issue orders freezing or confiscating it.
In the United States, crypto seizures occur under standard asset forfeiture and anti-money-laundering statutes. Courts have ordered defendants to surrender private keys or transfer assets to government-controlled wallets. For example, since 2015, the IRS Criminal Investigation division (IRS-CI) has seized more than $3.5 billion in cryptocurrency, and as of December 2021, the US Marshals Service held approximately $919 million in digital assets.
A notable example occurred in 2024, when a Texas court ordered a defendant convicted of tax evasion to surrender private keys controlling approximately $124 million in Bitcoin. The court also prohibited associates from moving any related crypto. The enforcement mechanism was not technical access to the blockchain, but legal coercion of the individual under threat of imprisonment.
This case demonstrated that while governments cannot break cryptography, they can compel cooperation from people through the judicial system.
The UK uses the Proceeds of Crime Act 2002 and subsequent updates to confiscate criminal assets, including cryptocurrency. British courts have now formally recognized crypto as property that can be frozen through injunctions and forfeited after conviction.
In one high-profile case, British authorities pursued recovery of Bitcoin linked to the 2020 Twitter hack, even though the criminal conviction occurred in the United States. Civil recovery orders were used to seize 42 Bitcoin, and freezing orders were applied during extradition proceedings to prevent the assets from being hidden or transferred.
Recent legislative updates in the UK further expanded police powers to seize crypto wallets and related access information when criminal risk is present.
India applies its Prevention of Money Laundering Act (PMLA) to crypto investigations. The Enforcement Directorate routinely freezes exchange accounts and crypto holdings connected to fraud and financial crime cases.
In January 2026, authorities reported freezing cryptocurrency worth approximately ₹4.79 crore in a land fraud investigation. Crypto was frozen alongside real estate and other traditional assets. Similar actions had occurred previously in other investigations involving exchanges.
India’s approach does not rely on crypto-specific regulation but on applying existing financial crime laws to digital assets.
Sanction regimes provide another method of restricting crypto use. Governments can prohibit regulated entities from transacting with specific wallet addresses associated with sanctioned individuals or activities.
In 2022, the US Office of Foreign Assets Control sanctioned Tornado Cash, a decentralized Ethereum mixing protocol, and added associated wallet addresses to its sanctions list. This marked the first time that smart contract addresses were sanctioned rather than individuals or organizations.
As a result, exchanges blocked transactions linked to those addresses, and the issuer of the USDC stablecoin froze tokens held in sanctioned wallets. Those specific USDC balances became unspendable due to blacklist functionality built into the token’s smart contract.
However, the sanctions were later challenged in court. In 2024, a federal appellate court ruled that immutable smart contracts could not be considered property under existing sanctions law and that Tornado Cash did not qualify as an entity subject to designation. Following this ruling, sanctions were lifted in 2025.
This case demonstrated both the reach of sanctions enforcement and the legal limits when decentralized protocols lack controlling entities.
Following Russia’s invasion of Ukraine, the European Union enforced international sanctions that included freezing crypto assets belonging to sanctioned Russian nationals. As an example, in March 2022, Switzerland’s government announced it would freeze cryptocurrency assets within Swiss jurisdiction belonging to sanctioned Russians, aligning with EU sanctions policy.
Japan amended its regulatory framework in 2023 to ensure that crypto exchanges were subject to the same sanctions compliance obligations as other financial institutions. As a result, the Financial Services Agency (FSA) instructed exchanges to block transactions involving sanctioned parties and to prevent the use of crypto to bypass restrictions.
Governments exert significant control through regulation of exchanges and payment services, which serve as gateways between crypto and TradFi systems.
Crypto exchanges in the US must register with the Financial Crimes Enforcement Network (FinCEN) and comply with Bank Secrecy Act requirements, including customer identification and transaction monitoring. If accounts are flagged, exchanges may freeze assets and report activity to authorities.
The United Kingdom is introducing a full regulatory framework for cryptoassets under the Financial Services and Markets Act (FSMA), which will bring crypto firms into the same legal system that governs traditional financial services.
Under this regime, set to take effect in 2027, activities such as operating crypto trading platforms, issuing or safeguarding cryptoassets, and arranging crypto transactions will become regulated activities requiring authorisation from the Financial Conduct Authority (FCA). This expansion builds on existing Anti-Money Laundering and Counter-Terrorist Financing (AML/CTF) requirements and will subject crypto firms to wider conduct, prudential, and consumer-protection rules under the Financial Services and Markets Act 2000 (FSMA 2000) framework.
Japanese exchanges are licensed under the Payment Services Act and are required to comply with financial crime prevention rules. Regulatory oversight allows authorities to order account freezes when criminal or sanction concerns arise.
India requires crypto exchanges to register with the Financial Intelligence Unit. By 2026, dozens of exchanges had entered the reporting system, subjecting transactions to regulatory monitoring and enforcement actions.
Through regulation of these access points, governments can effectively control large portions of the crypto economy without touching the blockchain itself.
Courts may also issue freezing orders in civil cases, particularly in fraud or asset recovery litigation. Courts in multiple jurisdictions have granted injunctions freezing crypto associated with defendants or unknown parties when assets are traceable to exchanges or custodians.
UK courts, for example, have issued freezing orders against “persons unknown” when stolen crypto is identified on exchanges, requiring platforms to preserve funds pending investigation.
Again, these orders depend on the presence of identifiable intermediaries. Fully private self-custodial wallets cannot be frozen through civil court processes alone.
While legal systems can declare assets frozen, blockchain networks do not recognize legal orders. They validate transactions solely based on cryptographic rules.
There is no administrative authority on Bitcoin or Ethereum capable of blocking individual addresses. Transactions are accepted if they are properly signed and follow network consensus rules.
This is why wallet providers cannot freeze user funds even if ordered to do so. They lack the technical control.
For governments to block transactions at the blockchain level, they would need sustained control over a majority of mining or validation power. This would require coordinated control of global infrastructure, which is economically and politically impractical.
Even when partial censorship occurs, it is rarely absolute. After Tornado Cash sanctions, about 50-80% of new Ethereum blocks were being mined or validated in a way that complied with OFAC sanctions, meaning they left out those blacklisted transactions.
In fact, initially around 80% of Ethereum blocks were OFAC-compliant post-sanctions. This raised concerns that the blockchain was undergoing de facto censorship. But because Ethereum has a diverse set of validators globally, not everyone complied and the censored transactions eventually did get included by non-compliant actors. Over time, the extent of censorship dropped; by mid-2023, less than 30% of Ethereum blocks were excluding sanctioned transactions, restoring a higher level of neutrality.
The network adjusted as some validators prioritized the principle of censorship-resistance (and as technical solutions like Maximal Extractable Value (MEV) – boost relays improved to minimize missed fees.
For a government to truly “freeze” a self-custodied crypto asset at the protocol level, it would require majority control of the network’s miners or validators to consistently reject any transactions from the target address. This is tantamount to performing a 51% attack or coordinating a global cartel of validators.
For large networks like Bitcoin or Ethereum, achieving that is extraordinarily difficult (and economically or politically costly), and if it were done, it would undermine the credibility of the network itself, likely prompting a fork or users moving to a different network. So instead of trying to rewrite blockchain rules, governments stick to the aforementioned legal and off-chain approaches.
Not all digital assets share the same resistance. Some tokens include centralized control mechanisms allowing issuers to freeze balances. For example, stablecoins issued by companies (like USDC by Circle, or USDT by Tether) are on-chain tokens but with off-chain governance: the issuer typically retains the ability to freeze tokens at specific addresses. Circle exercised this power in the Tornado case by blacklisting addresses and rendering the USDC in them unspendable.
Tether has also reportedly frozen addresses when requested by law enforcement.. For instance, the company recently restricted access to over $180 million in USDT across several Tron-based wallets after receiving requests tied to an active law enforcement investigation.
❄ ❄ An address with a balance of 44,990,109 #USDT (44,960,404 USD) has just been frozen!https://t.co/d4JuMUFwbX
— Whale Alert (@whale_alert) January 10, 2026
The affected wallets, each holding tens of millions of dollars, were frozen on the same day, suggesting coordinated action. Tether states that the move follows its policy of cooperating with authorities and blocking addresses linked to illegal activity or sanctions. These are akin to issuing companies “reaching into” the blockchain via a special permission in their smart contract.
A December 2025 AMLBot analysis shows that Tether’s USDT freezes since 2023 are roughly thirty times higher than Circle’s $109 million in USDC restrictions.
Similarly, certain newer smart contract platforms or permissioned blockchains might have admin keys or backdoors (though this is generally frowned upon in truly decentralized projects).
The existence of these control features means that technically, some crypto can be frozen, but it’s important to note this applies to tokens controlled by an entity, not to base cryptocurrencies like Bitcoin, which have no such controls.
When digital freezing fails, governments rely on physical enforcement. Authorities can seize hardware wallets, compel surrender of private keys, and obtain access through searches and arrests.
A government can also impose rules on miners/validators under its jurisdiction. For instance, regulators could require miners to run compliant software that filters transactions (somewhat analogous to how internet service providers are required to block certain websites). But unless that jurisdiction controls a huge portion of the global mining power, the transactions will still slip through via miners elsewhere.
One may have observed this when China banned Bitcoin mining in 2021 – a state action not specifically to censor transactions but to outlaw participation. The immediate result was a drop in the Bitcoin network hashpower, but miners simply relocated, and within months the network was as strong as ever. China could not “freeze” Bitcoin activity; it could only push it offshore.
Thus, decentralization means there is no single plug to pull.
If authorities know that an individual has a hardware wallet or memorized seed phrase, they can attempt to confiscate the device or compel the person to reveal the keys (using legal tools or even coercion). This isn’t “freezing” in the digital sense, it’s old-fashioned police work.
For example, the US Department of Justice has seized billions in crypto by obtaining private keys during raids or searches. In the Bitfinex exchange hack case, agents executed search warrants on a suspect’s cloud storage and found a file containing the private keys to 94,000 stolen Bitcoin, which they then swiftly seized to a government-controlled wallet.
The Silk Road investigations offer another famous example: In 2013, the FBI arrested Silk Road operator Ross Ulbricht and obtained access to his laptop, which was logged into his Bitcoin wallet, allowing the seizure of about 144,000 BTC. Years later in 2021, an unknown hacker’s long-hidden Silk Road loot (nearly 50,000 BTC) was seized after IRS investigators traced it and found the perpetrator, who handed it over in a plea deal.
These cases underscore that while the blockchain might not freeze your coins, law enforcement can freeze you (through arrest or legal compulsion) and thereby gain control of your assets. In Ahlgren’s tax case mentioned earlier, the court’s demand for his keys effectively put him in a position: give up the coins or sit in prison for contempt – either way, he wasn’t going to enjoy those Bitcoins freely ever again.
So, can governments freeze crypto? The answer is yes, but…. They can effectively freeze cryptocurrency assets in many situations – especially when those assets pass through choke points under government oversight (like exchanges, banks, or identifiable owners).
They can compel exchanges to lock accounts, sanction addresses, confiscate assets in criminal cases, and pressure individuals to surrender private keys. Laws in the United States, United Kingdom, Switzerland, Japan, and India all provide mechanisms to restrict access to crypto when linked to crime or sanctions.
However, governments cannot directly freeze funds on decentralized blockchains when users control their own keys and remain outside regulated platforms. There is no universal technical mechanism to block peer-to-peer transactions or invalidate specific wallet balances.
This creates a seemingly paradoxical reality:
Control is strongest at centralized points: exchanges, issuers, and identifiable users. It weakens as crypto moves deeper into decentralized, self-custodial environments.
For users, this means self-custody provides meaningful protection against third-party freezing but does not remove legal accountability. For governments, it means regulation will continue to focus on gateways and enforcement against individuals rather than attempts to control the blockchains themselves.
Ultimately, governments can freeze some crypto some of the time – but not all crypto all of the time. The boundary between legal authority and decentralized infrastructure continues to define the evolving balance of power between financial sovereignty and state control.
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