South Korea’s National Tax Service (NTS) has launched a comprehensive review of its crypto asset custody arrangements in response to a security incident that exposed wallet recovery phrases and led to unauthorized transfers of seized digital assets totaling $4.8 million. The breach, which brought renewed scrutiny to the agency’s digital asset management, has prompted plans for structural reforms and centralized controls. The NTS, part of the Ministry of Economy and Finance, is responsible for collecting taxes, enforcing tax compliance, and managing state-seized property, including cryptocurrencies tied to investigations or tax arrears.
Private Custody Providers Face Tougher Scrutiny
Following the incident, the NTS began evaluating external custody firms capable of managing its confiscated digital assets. This review process centers on candidate companies’ technical security standards, operational track record, company size, and institutional experience. Insurance coverage under the Virtual Asset User Protection Act will be a core requirement for all prospective partners. The move reflects mounting concern over the agency’s ability to safeguard seized crypto in the wake of the February breach, which saw images of a Ledger hardware device and a handwritten mnemonic exposed in a publicly released document.
Task Force Leads Overhaul Of Crypto Management
A specialized task force within the tax agency now oversees the restructuring of internal digital asset controls. This group is charged with updating workflows for the seizure, secure storage, liquidation, and transfer of cryptocurrencies. Enhanced internal audits and ongoing staff training are among the priorities. The task force is mapping the complete journey of seized tokens, from confiscation to disposition, in a bid to prevent further unauthorized movements and ensure accountability at each step.
Recovering from the exposure of sensitive recovery phrases, which resulted in assets being illicitly removed from NTS control, the agency has commenced widespread internal reviews. The breach triggered not only an immediate inquiry but also energized planning for organizational overhaul.
The NTS is working to centralize oversight of all crypto-related activities, which are currently distributed across several departments. Officials aim to consolidate these functions into a single dedicated division to reinforce compliance, transparency, and risk management throughout the asset lifecycle.
According to the agency, additional cases of compromised or lost digital assets have surfaced in recent months, involving law enforcement’s handling of confiscated cryptocurrencies. This history of incidents underscores the urgency behind current reforms and the drive to coordinate more closely with policing authorities to standardize procedures and prevent repeat events.
Agency representatives indicated they are reviewing custody management options, emphasizing a commitment to strengthen security, consolidate responsibilities, and draft revised guidelines for crypto management throughout the organization.
Technical measures under consideration include improved safeguards for hardware wallets, stricter protocols for handling mnemonic information, and tighter controls over access to devices and recovery data. Ongoing reform efforts also involve updating employee training regarding sensitive data management and best practices for digital asset storage.
The tax agency’s intention is to finalize its selection of a private custody firm after completing rigorous compliance checks and auditing institutional candidates under the new guidelines drafted by the task force. Further policy changes and internal restructuring are expected in the coming months as South Korea continues advancing its oversight of the crypto sector.
