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- South Korea lost $4.8M in seized crypto after exposing a wallet seed phrase
- Authorities now plan to outsource custody to private providers
- A broader system overhaul and inter-agency probe are underway
South Korea’s tax authority is scrambling to overhaul its crypto asset management practices after a costly operational mistake exposed vulnerabilities in how seized digital assets are handled. The National Tax Service of South Korea is now seeking a private custody provider following a security lapse that led to the loss of millions in confiscated cryptocurrency.
Seed Phrase Leak Triggers $4.8M Loss
The incident stems from a February 26 press release, where the agency inadvertently revealed a wallet recovery phrase tied to seized crypto assets. The exposed mnemonic phrase—visible in an unblurred image of a hardware wallet—allowed unauthorized actors to access and transfer approximately $4.8 million worth of tokens.
The mistake has drawn sharp criticism and highlighted the risks of improper handling of sensitive crypto credentials. Seed phrases act as master keys to wallets, and any exposure can lead to immediate and irreversible loss of funds.
Government Turns to Private Custody Solutions
In response, the NTS is now reviewing plans to outsource custody of confiscated crypto assets to a private provider. According to local reports, the agency aims to finalize its selection within the first half of 2026.
Potential custodians will be evaluated based on strict criteria, including security infrastructure, company scale, and compliance with South Korea’s Virtual Asset User Protection Act. Insurance coverage is also expected to play a key role in the selection process.
The move signals a broader shift toward institutional-grade custody solutions, as governments increasingly recognize the complexity of securing digital assets.
Broader Failures Prompt System Overhaul
The wallet leak is not an isolated case. Authorities are also investigating a separate incident in which local police in Seoul reportedly lost 22 Bitcoin previously seized in a criminal case. Together, these failures have exposed systemic weaknesses in crypto asset management across agencies.
In response, the government has launched an inter-agency review led by Deputy Prime Minister Koo Yun-cheol. The probe aims to assess how seized digital assets are stored, tracked, and liquidated.
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New Task Force to Strengthen Crypto Oversight
The NTS has formed a dedicated task force to improve operational procedures across the entire lifecycle of seized assets—from confiscation to liquidation. The group is also working on updated manuals, staff training programs, and the potential creation of a centralized crypto division.
Officials acknowledged that responsibilities for digital assets are currently fragmented across departments, complicating oversight and increasing risk.
South Korea’s push to adopt private crypto custody reflects a growing recognition that managing digital assets requires specialized expertise. As governments worldwide grapple with similar challenges, the incident serves as a cautionary tale: in crypto, even a small oversight can result in significant financial loss.
Disclaimer: The information in this article is for general purposes only and does not constitute financial advice. The author’s views are personal and may not reflect the views of Chain Affairs. Before making any investment decisions, you should always conduct your own research. Chain Affairs is not responsible for any financial losses.
Crypto and blockchain enthusiast.
