In 2017, during the ICO boom, I watched three projects crumble because their authentication was a mere password. Fast forward to 2025, and the Hong Kong SFC has done something unprecedented: it ordered every licensed crypto platform to abandon SMS-based one-time passwords (OTPs) within 12 months. This is not a suggestion—it's a mandatory switch to phishing-resistant authentication like Passkeys. The reason? A 57% rise in credential-based attacks, with SMS phishing at the forefront. But behind this regulatory push lies a deeper question: are we trading convenience for genuine security, or are we simply moving the target?
Context is everything. The SFC circular, issued with a deadline of July 8, 2026, requires all licensed virtual asset service providers (VASPs) and internet brokers to stop using OTPs for any logon process that can initiate transactions or access sensitive information. Large institutions must comply immediately. The trigger was a series of sophisticated man-in-the-middle attacks where attackers intercepted SMS OTPs during real-time phishing campaigns. This is an upgrade from previous guidance in 2020 and 2025, moving from advisory to mandatory. The circular explicitly states that OTPs are no longer considered “phishing-resistant,” and recommends Passkeys based on FIDO2 and WebAuthn standards. Importantly, the SFC will hold platform management accountable for any losses resulting from compromised credentials.
Core Analysis
Let's trace the code back to the conscience behind it. Passkeys use public-key cryptography: a private key stored in the device's secure enclave (e.g., Apple's Secure Enclave or Android's TEE), unlocked by biometric or PIN. No password or OTP is transmitted. This eliminates credential theft at the source—no SMS interception, no relay attacks. Based on my experience auditing DeFi protocols in Cape Town, the weakest link is often the authentication layer. I've seen reentrancy attacks, but credential theft is far more common. The SFC's move is technically sound—but only if implemented correctly. Every line of code is a hand extended in trust. If a platform implements Passkey integration poorly, with weak key generation or storage, the trust is betrayed.
The technical maturity is high. Passkeys are standardized by the FIDO Alliance and adopted by Apple, Google, and Microsoft. They are battle-tested. However, the requirement to limit binding to three devices is a pragmatic balance between security and usability. It reduces the attack surface but introduces a recovery problem: what happens when a user loses all three devices? The circular does not provide explicit recovery guidance, leaving platforms to devise their own mechanisms. This is a critical blind spot. In my community-driven education initiatives, I learned that users often neglect backup keys. Without a robust, phishing-resistant recovery flow, we risk creating a single point of failure—the device itself.
The impact on platforms is significant. Compliance costs will skyrocket. Small licensed entities may struggle to afford the upgrade, potentially consolidating the market around well-capitalized players. This aligns with a contrarian view: regulatory burdens often favor incumbents. The narrative that “liquidity fragmentation is a problem” is often manufactured by VCs to push new products; here, the fragmentation is regulatory, and it could centralize power. Yet, the SFC's liability clause—holding management responsible for client losses—is a powerful deterrent against corner-cutting. It forces platforms to invest in proper auditing and secure development. Education is the only true decentralized currency. Platforms must invest in user education to explain the switch, or risk user frustration and migration to unregulated exchanges.
Ethically, the regulation is a double-edged sword. It protects users from the most common attack vector, but it also imposes a mandatory technology choice. What about users who prefer the simplicity of OTPs? The SFC's decision is paternalistic, but given that 57% of attacks are credential-based, it is a necessary medicine. During my work with NFT artists, I saw how centralized platforms failed to enforce royalty payments. Here, the SFC is enforcing a security standard that platforms would likely not adopt voluntarily. Artists own their pixels; we just hold the keys. In this case, users own their accounts, and the regulation ensures those keys are held securely.
Contrarian Angle
The contrarian insight is that this regulation may inadvertently create new central points of failure. Passkeys require trust in device manufacturers' secure enclaves. If a vulnerability is discovered in Apple's Secure Enclave or Google's Titan M, it could affect millions of users. Moreover, the “phishing-resistant” label can breed complacency. Users may assume they are invincible and ignore other security practices, such as verifying transaction recipients or using hardware wallets. The 12-month transition period is tight; rushed implementations could introduce subtle bugs, such as insecure key backup or insecure account recovery. We build bridges, not just blocks, between people. This bridge must be strong but also open and interoperable. The SFC's mandate is specific to Hong Kong, but it sets a precedent. Global regulators will watch. If execution fails, it could set back the adoption of modern authentication, reinforcing the narrative that crypto is too risky.
Another blind spot is the assumption that all users have modern biometric-capable devices. The requirement for Passkeys implicitly excludes users of older or budget smartphones. This creates a digital divide within the user base. The SFC's three-device limit may also be too restrictive for power users who manage multiple accounts. Balancing security and inclusivity is a challenge that the circular does not address directly.
Takeaway
The SFC has set a new benchmark for crypto platform security. The real test is in the execution. Platforms must prioritize open-source, auditable implementations to build trust. We need a transparent recovery standard that doesn't become a backdoor. As I often say, “Tracing the code back to the conscience behind it” — the conscience here is user protection. Will platforms seamlessly migrate users without locking them out? Or will the rush to compliance create new headaches? The next 12 months will reveal whether Hong Kong becomes a gold standard or a cautionary tale. The blockchain's promise of sovereignty is at stake: can we have security without giving up self-sovereignty? Perhaps the answer lies in community-driven audits and user education, not just regulatory mandates. The bull market may be euphoric, but security is the bedrock. Let's not build on sand.