South Korean officials have vowed to overhaul how government agencies handle seized crypto after a series of high-profile security lapses left nearly $30 million in digital assets missing.
Deputy Prime Minister and Finance Minister Koo Yun-cheol said the government will immediately review the management of crypto held by public bodies — including tokens seized from delinquent taxpayers — and work with the Financial Services Commission (FSC) and Financial Supervisory Service (FSS) to shore up protections. In a Sunday post on X, Koo promised “swift” measures to prevent recurrence and stronger digital-asset security management, stressing that the government only holds crypto obtained through legal enforcement.
The announcement follows fresh outrage after the National Tax Service (NTS) accidentally published a full wallet seed phrase in a press release. The release, intended to showcase enforcement action against tax evaders, included an image of two Ledger cold wallets and a handwritten mnemonic that exposed recovery phrases. Blockchain researchers later tracked a transfer of one seized wallet’s entire balance — 4 million Pre-Retogeum (PRTG) tokens, roughly $4.8 million — to another address. Researchers noted, however, that PRTG’s extremely low liquidity likely limits the thief’s ability to cash out.
Experts criticized the lapse but called it a wake-up call. Professor Cho Jae-woo of Hansung University’s Blockchain Research Institute said the other exposed wallets appeared to hold tokens that were also hard to liquidate, and expressed hope the episode “serves as a turning point for the establishment of a robust virtual asset management system within Korea’s public sector.”
Last week’s seed-phrase leak is only the latest in a string of custody failures. Since January, government-held crypto losses have reached roughly $27 million:
- Gwangju District Prosecutors’ Office (January): 320 BTC — about $21 million — seized in 2021 were discovered missing after being drained in August during handling. Authorities say investigators fell for a phishing site while managing the assets. In a twist, the hacker returned the stolen Bitcoin in mid-February; prosecutors are continuing investigations to identify those responsible.
- Seoul Gangnam Police Station (recent inspection): 22 BTC — about $1.4 million — voluntarily submitted during a 2021 inquiry were found missing. Officials later determined the cold wallet itself was not stolen, but the funds were gone, raising questions about procedural safeguards and institutional knowledge of crypto custody.
These incidents have intensified scrutiny of how public agencies store and supervise digital assets. Authorities have pledged a coordinated review with relevant regulators to map current holdings and close gaps in custody practices. What to watch next: government audits of seized wallets, new protocols for handling mnemonic phrases, stricter cold-storage standards, and clearer inter-agency rules for evidence custody — all steps likely to be part of the reforms Koo promised.
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