Officials from the Federal Reserve and the Office of the Comptroller of the Currency (OCC) contacted US banks on Monday to inquire about unusual activity or service disruptions following the recent $6.34 billion hack of cryptocurrency exchange Binance.
The regulatory outreach, first reported by Reuters, aims to determine whether financial institutions are absorbing or managing threats similar to those that compromised Binance’s systems. A Federal Reserve spokesperson told Cointelegraph that the agency had nothing to share regarding the reported inquiries. Cointelegraph contacted the OCC for comment but had not received a response at the time of publication.
Banks assess exposure
Financial institutions have been assessing the breach and checking their internal systems in response to the regulator contacts. Reuters reported that a cybersecurity team at one of the largest US banks reached out to Binance within hours of the attack to gather information.
Stefan Muehlbauer, head of US government affairs at blockchain security firm CertiK, stated that such regulatory checks were expected given the scale of the incident. “After an incident of this scale, it would be surprising if the Fed and OCC didn’t check in with the banks they supervise,” Muehlbauer said.
The inquiries occur after the Federal Reserve removed a requirement in April 2025 for state member banks to notify regulators before engaging in crypto-related activities.
Binance shares incident details
A Binance spokesperson confirmed that the exchange shared its publicly released incident report with all banking partners. The spokesperson stated that Binance was not aware of any vulnerabilities affecting these financial institutions.
In its Nov. 3 incident report, Binance detailed that approximately $6.34 billion in digital assets were affected by an attack that began on Oct. 29. As of the report, $2.85 billion of those assets had been frozen or intercepted.
Binance attributed the breach to compromised software installed by an engineer in June. Hackers subsequently used social engineering, stolen credentials and malicious software to access wallet systems and execute unauthorized transfers. The exchange said it has since strengthened security controls and engaged independent cybersecurity experts to review the attack.
Security risks for traditional finance
Cybersecurity experts warn that the tactics used in the Binance breach pose risks to traditional banks, particularly those offering crypto custody and payment services. Dr. Darren Williams, founder and CEO of cybersecurity firm BlackFog, noted that hackers could exploit compromised employee devices, accounts or third-party services to move funds without triggering alerts.
Williams also highlighted that the growing use of agentic AI in financial operations could introduce additional vulnerabilities.
