South Korea’s National Tax Service is moving to hand seized cryptocurrency to private custodians after a security failure exposed the limits of in-house storage. The decision follows a damaging breach in which a publicly disclosed wallet recovery phrase allowed attackers to drain about $4.8 million on February 26, 2026.
The shift marks a significant change in how public authorities plan to manage confiscated digital assets. By turning to specialist custodians, the NTS is signaling that secure storage, insurance coverage and institutional-grade controls are now being treated as essential rather than optional.
A string of custody failures forced a policy change
The immediate trigger was the February 26 disclosure, when the NTS accidentally published a wallet recovery phrase in an official release. That single error gave outside attackers access to confiscated tokens and resulted in losses of roughly $4.8 million, or about 6 billion won.
The incident did not happen in isolation. A similar breakdown in 2022 led to the loss of more than $1.4 million in Bitcoin after Seoul police mishandled private keys for seized assets. Taken together with other vulnerable holdings, those failures left more than $42.5 million in seized virtual assets exposed to elevated operational risk.
Those episodes exposed a deeper weakness inside the public sector’s handling of digital assets. Government sources acknowledged that traditional IT teams were not equipped with the specialized procedures needed for secure key management, especially when dealing with privacy-focused tokens and sensitive custody operations.
The NTS is building a centralized, outsourced model
In response, the NTS has set up a Task Force for Advanced Virtual Asset Management and is creating a dedicated Digital Asset Management Division. The agency is trying to replace fragmented internal handling with a centralized model built around professional custody standards.
The next step is the formal selection of a private custodian. The NTS said it is preparing criteria that will prioritize hardened custody systems, strong cybersecurity, operational scale, financial stability, insurance coverage and transparent chain-of-custody procedures.
Those standards reflect a broader attempt to align public-sector asset handling with institutional market practices. Officials are drafting new guidelines so seized crypto can be moved to third-party custody under tighter supervision and with clearer accountability.
That transition will not eliminate risk, but it is meant to reduce the most obvious points of failure. Outsourcing custody should lower the chance of another basic operational breach, even if it introduces new procurement, contractual and insurance costs that the government will need to manage carefully.
The agency expects to complete the selection of a private custodian in the first half of 2026. That timeline will determine how quickly South Korea can move from improvised internal storage toward a more professional and insured custody framework for seized digital assets.