South Korea’s tax office apologizes for leaking seed phrase to seized crypto
The Register
March 2, 2026
AI-Generated Deep Dive Summary
South Korea’s National Tax Service has issued a public apology after inadvertently leaking sensitive information during a cryptocurrency seizure operation, resulting in a significant financial loss. The incident occurred earlier this month when the agency shared photos of seized assets with media outlets to showcase their success in busting 124 high-value tax evaders. Unfortunately, one of the images included a seed phrase—a critical credential used to access cryptocurrency wallets—which was exploited by unknown parties to drain $4.8 million worth of crypto from one of the seized wallets within hours of the photos being published.
The leak highlights a glaring oversight in how authorities handle sensitive digital assets. Seed phrases are highly confidential and should never be publicly exposed, as they can be used by malicious actors to gain unauthorized access to encrypted funds. The stolen cryptocurrency, known as Pre-Retogeum (PRTG), represented a significant portion of the $5.6 million worth of crypto and luxury goods seized during the operation. While the transaction was recorded on the blockchain, law enforcement agencies are now tasked with tracking down those responsible, leveraging the immutable nature of blockchain records to identify the culprits.
The incident has prompted a reevaluation of internal protocols by South Korea’s National Tax Service. The agency has vowed to strengthen its procedures for handling virtual assets, including revising its manual and training staff on proper handling practices. This case underscores the challenges authorities face when managing digital assets seized during criminal investigations. While blockchain technology is often praised for its transparency and security, it also requires meticulous handling by law enforcement to prevent exploitation.
The situation raises important questions about the intersection of cryptocurrency and law enforcement. As more agencies engage in seizing and managing virtual assets, the risk of accidental exposure of sensitive information like seed phrases becomes increasingly significant. This case serves as a cautionary tale, emphasizing the need for stringent internal controls and heightened awareness among officials handling digital currencies.
For tech enthusiasts and cybersecurity professionals, this story highlights the vulnerabilities inherent
Verticals
tech
Originally published on The Register on 3/2/2026