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GDAC

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[AI-DRAFTED · AWAITING VERIFICATION][src:defillama]

Auto-generated score, not yet verified against the scoring model. Under review — treat as indicative, not a verdict.

anchored·51iQ2F…z6Ub

Summary

GDAC was a South Korean cryptocurrency exchange operated by Peertec Co., Ltd. that launched in May 2018 and was registered as a Virtual Asset Service Provider (VASP) with Korea's Financial Intelligence Unit (KoFIU). On April 9, 2023, attackers drained approximately $13–14 million from its hot wallets — representing 23% of total custodial assets — causing the exchange to permanently shut down with no compensation offered to affected users.

Connected Entities

1 entities
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    Timeline(7 events)

    December 2017

    Peertec Co., Ltd. incorporated in Seoul, South Korea.

    May 2018

    GDAC cryptocurrency exchange launches.

    September 2018

    GDAC opens Korean Won (KRW) fiat trading market.

    9 April 2023

    Attackers drain approximately $13–14.2M from GDAC hot wallets at 7:00 a.m. KST, stealing ~60.8 BTC, 350.5 ETH, 10M WEMIX, and 220,000 USDT — 23% of total custodial assets.

    10 April 2023

    GDAC CEO Seunghwan Han publicly confirms the breach. Exchange suspends all deposits and withdrawals. KISA, KoFIU, and Korean National Police Agency are notified.

    April 2023

    GDAC permanently ceases operations. No compensation plan announced for affected users.

    February 2025

    KoFIU confirms GDAC has been removed from the South Korean VASP registry, alongside ProBit and Huobi Korea.

    Provenance & Audit Trail

    Decision Log

    This investigation is cryptographically anchored to the Solana blockchain (1 event). 12 of 13 cited source URLs have an Internet Archive snapshot.

    model: claude-sonnet-4-6

    generated: 5/4/2026, 2:54:42 AM

    last updated: 8/30/2026, 1:16:31 AM

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