Hong Kong SFC Orders Crypto Exchanges to Ditch OTP Logins for Stronger Security

Hong Kong’s Securities and Futures Commission (SFC) has formally directed all licensed virtual asset trading platforms and online brokerages to phase out the use of one-time password (OTP) authentication for customer logins and device registration. The regulatory directive, first reported by The Block, requires firms to adopt more robust authentication methods that are resistant to identity forgery, such as passkeys and device binding.

Why the SFC is moving away from OTP

The SFC’s decision stems from growing concerns over account takeovers, financial fraud, and sophisticated spoofing attacks that exploit the inherent weaknesses of OTP-based authentication. Unlike passkeys or device-bound credentials, OTP codes can be intercepted through phishing, SIM-swapping, or man-in-the-middle attacks, making them a vulnerable link in the security chain for high-value crypto accounts.

In its circular to licensed entities, the SFC stated that authentication methods must prevent identity forgery. The regulator emphasized that OTPs no longer meet the required security standards for customer logins and device registrations, and that firms must transition to alternative frameworks that offer stronger cryptographic guarantees.

Timeline and industry implications

While the SFC has not set a hard public deadline for full compliance, the directive is understood to be immediate in effect, with firms expected to submit implementation plans. This regulatory push places Hong Kong among a growing list of jurisdictions tightening authentication requirements for digital asset services, following similar moves by regulators in Singapore, the UK, and the European Union under PSD2 and MiCA frameworks.

For licensed crypto exchanges operating in Hong Kong, the transition means investing in passkey infrastructure, biometric verification systems, and device binding technologies. These measures are expected to reduce the risk of credential theft and unauthorized account access, but may also introduce new user experience considerations, particularly for less tech-savvy customers.

What this means for crypto investors

For users of Hong Kong-licensed platforms, the shift away from OTPs represents a meaningful upgrade in account security. Passkeys, which rely on public-key cryptography and are tied to a user’s device, are inherently resistant to phishing and replay attacks. Device binding further ensures that even if login credentials are compromised, access from an unrecognized device is blocked.

The SFC’s move signals a broader regulatory expectation that crypto platforms must adopt security standards comparable to, or exceeding, those of traditional financial institutions. Investors should expect to see passwordless login options and biometric authentication become standard features on compliant platforms in the coming months.

Conclusion

The Hong Kong SFC’s directive to phase out OTP authentication marks a significant step in elevating cybersecurity standards for the city’s digital asset ecosystem. By mandating the adoption of passkeys and device binding, the regulator is addressing a critical vulnerability that has been exploited in numerous high-profile crypto thefts. The move reinforces Hong Kong’s commitment to building a secure and trustworthy environment for virtual asset trading, while setting a precedent that other jurisdictions may follow.

FAQs

Q1: Why is the SFC banning OTP for crypto exchanges?
OTP codes are vulnerable to phishing, SIM-swapping, and spoofing attacks. The SFC is mandating stronger authentication methods like passkeys and device binding to prevent account takeovers and financial fraud.

Q2: What authentication methods will replace OTP?
The SFC recommends passkeys (which use public-key cryptography) and device binding, which ties authentication to a specific, trusted device. Biometric verification may also be used.

Q3: When do crypto exchanges need to comply?
The directive is effective immediately. Licensed firms are expected to submit implementation plans to the SFC, though a specific hard deadline has not been publicly announced.