---
title: "South Korea Reviews Crypto Custody Provider After Security Breach"
type: "News"
locale: "en"
url: "https://longbridge.com/en/news/279934121.md"
description: "South Korea's National Tax Service is reviewing a private custody provider for seized cryptocurrencies after a security breach that led to the unauthorized transfer of $4.8 million in tokens. The breach involved a leaked seed phrase in February. The agency is drafting selection criteria and aims to finalize the provider by mid-2026, following another custody failure involving 22 BTC and an investigation into the management of seized digital assets."
datetime: "2026-03-20T11:21:25.000Z"
locales:
  - [zh-CN](https://longbridge.com/zh-CN/news/279934121.md)
  - [en](https://longbridge.com/en/news/279934121.md)
  - [zh-HK](https://longbridge.com/zh-HK/news/279934121.md)
---

# South Korea Reviews Crypto Custody Provider After Security Breach

South Korea's National Tax Service is evaluating a private custody provider for seized cryptocurrencies following a security breach earlier this year. According to NS3.AI, the incident involved a leaked seed phrase in February, resulting in an unauthorized transfer of approximately $4.8 million in tokens. The agency is currently drafting criteria for selecting a provider and plans to finalize the choice by the first half of 2026. This review comes in the wake of another custody failure involving 22 BTC and a cross-agency investigation into the management of seized digital assets.

### Related Stocks

- [IBLC.US](https://longbridge.com/en/quote/IBLC.US.md)
- [HIVE.US](https://longbridge.com/en/quote/HIVE.US.md)
- [GLXY.US](https://longbridge.com/en/quote/GLXY.US.md)
- [EZBC.US](https://longbridge.com/en/quote/EZBC.US.md)
- [BTCO.US](https://longbridge.com/en/quote/BTCO.US.md)
- [LTCN.US](https://longbridge.com/en/quote/LTCN.US.md)
- [COIN.US](https://longbridge.com/en/quote/COIN.US.md)
- [BKKT.US](https://longbridge.com/en/quote/BKKT.US.md)
- [HODL.US](https://longbridge.com/en/quote/HODL.US.md)
- [WGMI.US](https://longbridge.com/en/quote/WGMI.US.md)
- [SATO.US](https://longbridge.com/en/quote/SATO.US.md)
- [ETHW.US](https://longbridge.com/en/quote/ETHW.US.md)
- [ARKB.US](https://longbridge.com/en/quote/ARKB.US.md)
- [EETH.US](https://longbridge.com/en/quote/EETH.US.md)
- [ABTC.US](https://longbridge.com/en/quote/ABTC.US.md)
- [IBIT.US](https://longbridge.com/en/quote/IBIT.US.md)
- [ETHE.US](https://longbridge.com/en/quote/ETHE.US.md)
- [MRAL.US](https://longbridge.com/en/quote/MRAL.US.md)
- [BKCH.US](https://longbridge.com/en/quote/BKCH.US.md)
- [GSOL.US](https://longbridge.com/en/quote/GSOL.US.md)
- [FETH.US](https://longbridge.com/en/quote/FETH.US.md)
- [CETH.US](https://longbridge.com/en/quote/CETH.US.md)
- [WULF.US](https://longbridge.com/en/quote/WULF.US.md)
- [BLKC.US](https://longbridge.com/en/quote/BLKC.US.md)
- [QETH.US](https://longbridge.com/en/quote/QETH.US.md)
- [BCOR.US](https://longbridge.com/en/quote/BCOR.US.md)
- [EZET.US](https://longbridge.com/en/quote/EZET.US.md)
- [CLSK.US](https://longbridge.com/en/quote/CLSK.US.md)
- [MNRS.US](https://longbridge.com/en/quote/MNRS.US.md)
- [BITQ.US](https://longbridge.com/en/quote/BITQ.US.md)
- [BITO.US](https://longbridge.com/en/quote/BITO.US.md)
- [FBTC.US](https://longbridge.com/en/quote/FBTC.US.md)
- [LMBO.US](https://longbridge.com/en/quote/LMBO.US.md)
- [HUT.US](https://longbridge.com/en/quote/HUT.US.md)
- [CIFR.US](https://longbridge.com/en/quote/CIFR.US.md)
- [BTCW.US](https://longbridge.com/en/quote/BTCW.US.md)
- [BTF.US](https://longbridge.com/en/quote/BTF.US.md)
- [RIOT.US](https://longbridge.com/en/quote/RIOT.US.md)
- [ETHV.US](https://longbridge.com/en/quote/ETHV.US.md)
- [BSOL.US](https://longbridge.com/en/quote/BSOL.US.md)
- [BITB.US](https://longbridge.com/en/quote/BITB.US.md)
- [ETHA.US](https://longbridge.com/en/quote/ETHA.US.md)
- [ETH.US](https://longbridge.com/en/quote/ETH.US.md)
- [MARA.US](https://longbridge.com/en/quote/MARA.US.md)
- [BLOK.US](https://longbridge.com/en/quote/BLOK.US.md)
- [CORZ.US](https://longbridge.com/en/quote/CORZ.US.md)
- [BTCHKD.VAHK](https://longbridge.com/en/quote/BTCHKD.VAHK.md)
- [BTCUSD.VAHK](https://longbridge.com/en/quote/BTCUSD.VAHK.md)

## Related News & Research

- [10:49 ETLa gama mejorada de criptomonedas de Axi logra una adopción del 46% en las carteras de sus clientes](https://longbridge.com/en/news/283523008.md)
- [Key facts: Cardano Targets $1.18–$6.30; Beware Mobile Phishing](https://longbridge.com/en/news/283572460.md)
- [Coinbase introduces crypto loans in UK using USDC, supported by BTC, ETH, and cbETH, amid FCA regulations.](https://longbridge.com/en/news/283354481.md)
- [10:44 ETDas erweiterte Krypto-Angebot von Axi verzeichnet eine Portfolio-Akzeptanz von 46 % bei den Kunden](https://longbridge.com/en/news/283522079.md)
- [FIO Protocol introduced 50+ year FIO domain registrations on April 20th](https://longbridge.com/en/news/283389067.md)