Last Friday, Binance announced that approximately $570 million worth of cryptocurrency had been stolen by hackers from a blockchain “bridge” used in the BNB chain. Blockchain bridges—which are used to transfer cryptocurrencies between applications—have seen a recent uptick in hacking, with an estimated $2+ billion stolen just this year.

After the hack, Binance, which is the world’s largest crypto exchange, suspended its BNB Chain blockchain for a few hours, halting trading. Like many other large crypto exchanges, Binance makes it difficult for users to move their crypto to different blockchains, necessitating the use of the less secure blockchain bridges. According to Binance’s CEO, after recovery efforts, they were able to limit the losses to “less than $100 million.”

When asked how Binance planned to address the exploited weakness in the blockchain bridge, Binance’s CEO said “the code is written by a group of developers for the blockchain, which is what we call the community developers or core developers, and the nodes that maintain this network—there’s like 26 to 44 nodes depending on what you count—and they need to vote to do the upgrade themselves.” He mentioned some votes have already been taken to make changes related to the hack but provided no assurances that blockchain bridges can be wholly trusted or that any efforts have been taken to find a different and safer way for users to transfer their crypto between chains.

Revision Legal has represented crypto owners who had their crypto stolen in hacks and due to the negligence of third-party providers. And our attorneys are experts when it comes to data breaches and remedies. If you or someone you know has had their crypto stolen or compromised, give the attorneys at Revision Legal a call or drop them a line here.

Legal Theories Available to Cryptocurrency Theft Victims

Victims of cryptocurrency theft have several potential legal theories available depending on how the theft occurred. When crypto is stolen due to the negligence or misconduct of an exchange or custodial platform, negligence and breach of fiduciary duty claims may be available. Exchanges and custodians that hold user funds — rather than users holding their own private keys — are in a position of trust, and their failure to implement adequate cybersecurity measures can constitute actionable negligence. Class action litigation has been filed against multiple exchanges following major hacks, with plaintiffs arguing that the exchange failed to meet industry-standard security practices.

When crypto is stolen through direct hacking, the Computer Fraud and Abuse Act (CFAA), 18 U.S.C. § 1030, provides a civil cause of action for unauthorized access to computer systems that results in damage or loss exceeding $5,000. The CFAA has been used by crypto theft victims to seek recovery from identifiable hackers, though identifying and locating the perpetrators of sophisticated blockchain hacks remains the most significant practical challenge. Tracing crypto transactions through blockchain forensics is an increasingly sophisticated discipline that specialized attorneys and their forensic experts can deploy.

Blockchain Bridges: Why They Are a Persistent Security Vulnerability

The Binance hack described in the original post targeted a blockchain bridge — software that enables the transfer of cryptocurrency between different blockchain networks. Blockchain bridges are inherently complex pieces of code that must simultaneously interact with multiple blockchain protocols, creating a larger attack surface than applications that operate on a single chain. The Ronin Network bridge hack (March 2022, ~$625 million stolen), the Wormhole bridge hack (February 2022, ~$320 million stolen), and the Nomad bridge hack (August 2022, ~$190 million stolen) all preceded the Binance BNB chain bridge hack — demonstrating that this attack vector was well-known and recurring.

From a legal standpoint, the persistence of known vulnerabilities raises questions about the legal responsibility of bridge operators. If a bridge operator was aware of a security flaw — through public disclosures, prior audit reports, or reports from security researchers — and failed to remediate it before a hack exploited that same vulnerability, that prior knowledge could be relevant to negligence claims. Attorneys handling crypto theft cases review the security audit history, disclosure history, and technical specifications of the affected platform to evaluate whether the operator’s conduct fell below an objectively reasonable standard of care.

Practical Steps After Cryptocurrency Is Stolen

If your cryptocurrency has been stolen, the steps you take in the immediate aftermath can significantly affect your ability to recover it or obtain legal relief. First, preserve all evidence — transaction records, email communications with the exchange or platform, screenshots of account activity, and any communications related to the hack. Second, report the theft to the FBI’s Internet Crime Complaint Center (IC3) and to the relevant cryptocurrency exchange or platform. Regulatory reporting creates a record that may be relevant to later civil or criminal proceedings.

Third, consider engaging a blockchain forensics firm that can trace the stolen cryptocurrency through the blockchain. While crypto transactions are pseudonymous — not anonymous — they are publicly recorded on the blockchain. Sophisticated tracing tools can often follow stolen funds through mixers, bridges, and exchanges to identify where they ended up and who controls those wallets. This tracing evidence can support civil litigation, regulatory complaints, or law enforcement investigations. Finally, consult with an attorney experienced in cryptocurrency law to evaluate your legal options, the statute of limitations applicable to your claims, and the practical feasibility of recovery given the identity and location of the responsible parties.

Regulatory Landscape for Cryptocurrency Exchanges

The regulatory framework governing cryptocurrency exchanges in the United States remains fragmented and evolving. The Securities and Exchange Commission (SEC) has taken the position that many cryptocurrencies are securities subject to federal securities laws, while the Commodity Futures Trading Commission (CFTC) asserts jurisdiction over crypto assets it classifies as commodities. The Financial Crimes Enforcement Network (FinCEN) requires cryptocurrency exchanges operating in the U.S. to register as money services businesses and comply with Bank Secrecy Act anti-money laundering requirements. State-level regulation adds an additional layer — New York’s BitLicense regime is the most rigorous state framework, while other states impose varying registration and compliance requirements.

This regulatory uncertainty affects theft victims’ legal options because it shapes what obligations exchanges owed to users at the time of a breach. An exchange that was required to comply with FinCEN’s AML/KYC requirements but failed to do so may face regulatory penalties that indirectly benefit theft victims through restitution orders. An exchange that failed to maintain adequate cybersecurity despite applicable state-level requirements may face negligence liability under state law. A cryptocurrency attorney who monitors the rapidly changing regulatory environment can identify the most viable theories of recovery based on the specific exchange’s compliance history and the applicable regulatory framework at the time of the theft.

If you or your business has suffered cryptocurrency theft — whether through a platform hack, a phishing attack, a fraudulent transfer, or the negligence of a custodial service — the attorneys at Revision Legal can evaluate your situation and advise on the available legal remedies. Time matters in these cases: evidence can disappear, blockchain transactions can become harder to trace as funds pass through multiple wallets and mixers, and statutes of limitations run regardless of whether the perpetrators have been identified. Contact us promptly to preserve your legal options.