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South Korea's National Tax Service Ledger cold wallet seed phrase exposure

Data Leak
First reported
Last updated
Happening score
H score 16
1 unique sources, 1 articles

Summary

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The South Korea's National Tax Service publicly exposed the mnemonic recovery phrase for a seized Ledger cold wallet, creating immediate risk that anyone could control the stored crypto assets. Shortly after the leak, 4 million PRTG tokens were transferred out of the wallet, with losses reported at roughly $4.4 million to $4.8 million. The exposure mattered because the seed phrase functioned as the wallet's master key and bypassed the device, PIN, and permission controls.

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Tangem crypto wallet card unpatchable laser password reset security flaw

Vulnerability
H score34 First: 10.07.2026 17:51 Last: 10.07.2026 17:51 Sources 1

About this happening: A Tangem crypto wallet card vulnerability lets a precisely timed laser pulse reset the card's password, creating a path for a thief with the physical card to take control...

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Timeline

  1. 28.02.2026 17:17 2 articles · 4mo ago

    NTS exposes Ledger wallet seed phrase and a drain follows

    Initial Disclosure

    South Korea’s National Tax Service publicly exposed the mnemonic recovery phrase for a seized Ledger cold wallet tied to 124 high-value tax evaders, and shortly afterward 4 million Pre-Retogeum (PRTG) tokens were transferred out of the wallet in three transactions after a small Ethereum (ETH) gas deposit, with losses reported at about $4.4 million to $4.8 million and the press release later removed from the NTS website.

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