Opening a Cryptocurrency Account: Security, Structure, and Consequences
The decision to open a cryptocurrency account carries legal, financial, and operational implications that extend well beyond the initial deposit. For high-net-worth individuals, family offices, and corporate treasury functions, the stakes are magnified by the scale of holdings, the complexity of applicable regulatory regimes, and the finality of blockchain-based transactions. This alert addresses three critical dimensions of that threshold decision: the proactive security measures that should be in place before any digital asset is acquired, the structural and tax considerations that attend account design, and the consequences that follow when security protocols are not observed.
Proactive Security Measures
Account holders should implement multi-factor authentication on every exchange and wallet interface as a baseline measure. Hardware wallets, which store private keys offline on dedicated devices such as Ledger or Trezor products, remain the most secure option for significant holdings because they isolate signing authority from internet-connected environments. Software wallets, while more convenient, are susceptible to remote compromise through phishing, malware, and social engineering campaigns that have grown substantially in recent years. Users must further exercise caution when connecting wallets with various protocols, as “token approval” hacks and exploits are commonplace. More generally, seed phrase and private key management is paramount: if a seed phrase is lost or stolen, the associated assets are typically unrecoverable, and no central authority exists to reset access.
Emerging cryptographic wallet technologies offer additional layers of protection. For example, multi-party computation (“MPC”) and multi-signature architectures distribute signing authority across multiple parties, reducing the risk that a single point of compromise results in total loss. The December 2025 SEC Division of Trading and Markets statement on broker-dealer custody of digital asset securities specifically recognized MPC arrangements as a means by which broker-dealers may establish sufficient signing authority under Rule 15c3-3. Zero-knowledge proof (“ZKP”) technologies, while still maturing, are being explored to enable authentication and transaction verification without exposing underlying private key data, offering a privacy-preserving complement to existing security infrastructure.
Platform selection is equally critical. Account holders should verify that their chosen exchange or custodian complies with anti-money laundering (“AML”) and know-your-customer (“KYC”) requirements. The CLARITY Act of 2025, which passed the House in July 2025 and is under Senate review, would treat digital commodity exchanges, brokers, and dealers as “financial institutions” under the Bank Secrecy Act, subjecting them to AML, counter-terrorism financing, suspicious activity reporting, and customer identification requirements. Platform compliance with these requirements is a meaningful indicator of the institution's commitment to security and regulatory accountability.
Recent SEC actions have reshaped the custody landscape. The rescission of SAB 121 through SAB 122 in January 2025 removed the requirement that custodians book digital assets as balance-sheet liabilities, eliminating a key barrier to bank and broker-dealer custody offerings. In December 2025, the SEC Division of Trading and Markets issued guidance on how broker-dealers may establish “physical possession” of crypto asset securities under Rule 15c3-3, including through private key management policies and contingency planning for blockchain disruptions. On March 11, 2026, the SEC and CFTC signed a Memorandum of Understanding on regulatory harmonization and jointly classified 16 crypto assets as digital commodities. These developments expand the range of regulated custodians available to institutional holders but require account holders to evaluate whether their custodian's infrastructure meets the contemplated operational security standards.
Practical Considerations in Account Structure
The choice between custodial and self-custodial arrangements has significant legal and practical consequences. Custodial arrangements, in which a third party holds the private keys, offer convenience and regulatory protections such as asset segregation and insolvency safeguards under the CLARITY Act. Self-custodial arrangements provide maximum autonomy but shift the full burden of security and disaster recovery to the holder. The CLARITY Act affirms the right of U.S. individuals to self-custody and transact with their own digital assets.
Under the CLARITY Act, a “qualified digital asset custodian” must be regulated by a federal, state, or foreign authority and subject to adequate supervision for digital asset custodial activities. Futures commission merchants must hold customer digital assets with such a custodian, with no self-custody exceptions.
The Revised Uniform Fiduciary Access to Digital Assets Act (“RUFADAA”), adopted in some form by the vast majority of U.S. states, establishes a three-tiered hierarchy governing fiduciary access to digital assets upon death or incapacity: online legacy tool directions take priority, followed by express authorization in estate planning documents, followed by the custodian's terms of service. Critically, RUFADAA grants fiduciary authority but does not recover lost keys or seed phrases, meaning digital assets may be permanently inaccessible without secure credential documentation. Estate planning documents should include express digital asset authorization clauses, and practitioners should coordinate with RUFADAA and UCC Article 12's treatment of controllable electronic records to ensure proper perfection of transfers and security interests.
Entity-level structuring through trusts or LLCs offers asset protection and tax planning advantages. Cryptocurrency is treated as property under IRC Section 61, and any disposition triggers a realization event. Staking rewards and airdrops present particular complexity: the IRS treats staking rewards as gross income at fair market value upon receipt, and under IRC Section 83 the timing and character of that income depend on applicable vesting restrictions. The CLARITY Act further clarifies that end-user distributions, including staking rewards, do not involve the offer or sale of a security. Proper entity structuring can facilitate efficient tax management, coordinated estate and succession planning, and personal asset protection.
Consequences of Failing to Follow Security Measures
The consequences of inadequate security are severe and, in many cases, irreversible. The FBI's Internet Crime Complaint Center reported that cryptocurrency-related fraud losses in the United States reached approximately $9.3 billion in 2024 across nearly 150,000 complaints, a 66% increase over the $5.6 billion reported in 2023. Globally, Chainalysis reported that hackers stole more than $3.4 billion in cryptocurrency during 2025, with the February compromise of the Bybit exchange alone accounting for approximately $1.5 billion in stolen funds. Private key compromises, though relatively infrequent in number, have had disproportionate financial impact, with a single breach capable of dominating quarterly loss figures.
State-sponsored activity is a primary driver of these losses. North Korean hackers stole at least $2.02 billion in cryptocurrency in 2025, a 51% increase year-over-year, using tactics such as embedding IT workers inside crypto companies and impersonating Web3 recruiters to harvest credentials. Personal wallet compromises also surged, with an estimated 158,000 incidents affecting at least 80,000 unique victims in 2025.
The irreversibility of blockchain transactions is a defining feature of the risk environment. Unlike traditional financial systems, where fraudulent wire transfers may sometimes be reversed through interbank processes, users must therefore exercise caution in their digital asset transactions as transmission to an incorrect address—such as because of a typo, reference to the incorrect blockchain, or an exploit—is often irreversible. Holders may also be targeted for theft through a number of threat vectors; given the digital nature of cryptocurrency, scammers or hackers can exfiltrate and begin laundering assets within minutes, highlighting the need for immediate action. Recovery prospects remain highly fact-dependent, considering the nature of the loss, the relevant jurisdictions, and other considerations. Here, law enforcement and/or experienced legal counsel may leverage sophisticated blockchain analytics software and other strategies to attempt seizure and recovery.
That considered, victims of cryptocurrency theft also face a secondary risk: fraudulent recovery services. The FBI issued a public service announcement in June 2024 warning that fictitious law firms and recovery services are targeting cryptocurrency scam victims, purporting to offer fund recovery in exchange for upfront fees, and instead subjecting victims to a second layer of fraud. Account holders should be alert to any unsolicited offers of recovery assistance and should report suspected fraud promptly to the FBI's IC3 at ic3.gov.
For More Information
If you have questions about addressing these risks, or about establishing or protecting cryptocurrency accounts, please contact Bill Kraus (william.kraus@pierferd.com), Tom Vincent (tom.vincent@pierferd.com), or your regular firm contact.
This publication and/or any linked publications herein do not constitute legal, accounting, or other professional advice or opinions on specific facts or matters and, accordingly, the author(s) and PierFerd assume no liability whatsoever in connection with its use. Pursuant to applicable rules of professional conduct, this publication may constitute Attorney Advertising. © 2026 Pierson Ferdinand LLP.
