Find notable cyber news and cases, enriched with sources, timelines, and signals.

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

Data Leak
First reported
Last updated
Happening score
H score 22
1 unique sources, 1 articles

Summary

Hide ▲

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.

Timeline

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

    Show sources