São Paulo: Brazil is tightening oversight of cryptocurrency transfers as the country moves to curb the use of digital assets to rapidly move money obtained through financial fraud. The Central Bank of Brazil has announced new anti-fraud measures under which certain cryptocurrency transfers could be delayed by up to 24 hours when they meet specified risk thresholds.
The new rules are scheduled to take effect next year and will apply to cryptocurrency transfers exceeding the equivalent of $10,000 when sent to foreign virtual-asset service providers or self-custody wallets. The threshold can be assessed either on the basis of an individual transaction or the total amount transferred by a customer during a single day.
The central bank said the measure is aimed at addressing the growing use of virtual assets, including stablecoins, in financial crime. According to the regulator, criminals are increasingly using digital currencies to move funds obtained through scams quickly across accounts, platforms and jurisdictions. The additional processing time is intended to give financial institutions greater opportunity to identify potentially suspicious transactions before funds leave the regulated financial system.
The measure is particularly significant for transactions involving foreign virtual-asset companies and self-custody wallets. While transfers to overseas platforms can move funds across jurisdictions, self-custody wallets allow users to control their own private keys without relying on a traditional cryptocurrency exchange or financial intermediary. Regulators have increasingly focused on such transactions because tracing the ultimate recipient can become more difficult once funds are moved outside regulated platforms.
Under the new framework, a transaction exceeding the prescribed threshold will not automatically be prohibited. Instead, the central bank will allow financial institutions to delay the transfer for additional scrutiny where the transaction falls within the scope of the anti-fraud rules.
The regulator has also indicated that the 24-hour delay could be applied to other cryptocurrency transactions that require closer examination under an institution’s risk-management policies. This gives banks and other regulated entities additional flexibility to assess transactions that may show unusual patterns or characteristics associated with financial fraud.
The central bank stressed that the measure should not be interpreted as an asset freeze. The temporary delay does not permanently block the transfer or confiscate the customer’s cryptocurrency. Instead, it creates an additional window during which financial institutions can conduct checks and determine whether a transaction should proceed.
The move comes as cryptocurrencies become increasingly integrated into global financial activity. Stablecoins, whose value is generally linked to assets such as the U.S. dollar, have become particularly important for transferring funds rapidly across borders. Their speed and accessibility have also attracted criminal networks seeking to move proceeds from scams and other illicit activities.
Brazilian authorities are therefore attempting to balance the legitimate use of cryptocurrencies with the need to prevent digital assets from becoming channels for financial crime. The new rules place greater responsibility on regulated institutions to identify transactions that may require enhanced scrutiny and to respond to potential fraud risks before transfers are completed.
For cryptocurrency users, the changes could mean that some large transfers may no longer be processed immediately. Customers moving more than $10,000 to overseas virtual-asset firms or their own self-custody wallets could face additional checks and, where applicable, a delay of up to 24 hours.
The daily aggregation provision is also important because users may not be able to avoid scrutiny simply by dividing a large transfer into several smaller transactions. The threshold can be calculated based on the customer’s cumulative transfers during a single day, allowing institutions to consider the broader transaction pattern rather than evaluating each transfer in isolation.
The central bank’s decision reflects a broader international effort to strengthen controls around cryptocurrency-based financial crime. As digital assets become easier to transfer across borders, regulators are increasingly seeking mechanisms that can slow suspicious transactions without imposing blanket restrictions on legitimate cryptocurrency activity.
The new Brazilian rules are expected to provide financial institutions with additional time to detect potential fraud, examine transaction patterns and identify suspicious movement of funds. The central bank has maintained that the measure is a risk-control mechanism rather than a general restriction on cryptocurrency transfers.
With implementation scheduled for next year, banks, virtual-asset service providers and cryptocurrency users will have time to adjust their transaction monitoring and compliance procedures. The effectiveness of the framework will ultimately depend on how accurately institutions identify high-risk transfers while ensuring that legitimate transactions continue without unnecessary disruption.
About the author — Suvedita Nath is a science student with a growing interest in cybercrime and digital safety. She writes on online activity, cyber threats, and technology-driven risks. Her work focuses on clarity, accuracy, and public awareness.
