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0xCERT Security Advisory 0xCERT-2026-0257
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Advisory-ID:  0xCERT-2026-0257
Severity:     Critical
Published:    2026-10-07T00:00:00.000Z
Updated:      2026-10-20T08:08:04.360Z
Chains:       BNB Chain
URL:          https://www.0xcert.com/advisory/0xCERT-2026-0257

Title: 79thVault Operator Key Compromise

Summary
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An attacker used the 79thVault operator's leaked key to drain a 79AU PancakeSwap pool for ~$12.5M on BNB Chain; most funds were later returned.

Details
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Summary
An attacker used the 79thVault operator's leaked key to drain a 79AU PancakeSwap pool for ~$12.5M on BNB Chain; most funds were later returned.

Incident
- - Victim: 79thVault (79AU)
- - Date (UTC): 2026-10-07
- - Estimated loss: $12.5M
- - Chain(s): BNB Chain
- - Attack type: private key compromise
- - Funds status: partially-recovered

Recommended actions
- - If you use 79thVault (79AU), move funds to a fresh wallet with a new seed phrase once the vendor confirms the root cause
- - Update the wallet software only from official sources
- - Beware of follow-on phishing: ignore unofficial "refund", "recovery", or "claim" links and DMs; use the project's verified channels only

Source & attribution
Full analysis on Blockchain Breaches, 0xCERT's incident archive: https://www.blockchainbreaches.com/en/breaches/79thvault-2026. Primary sources: https://www.kucoin.com/news/flash/79thvault-hot-wallet-suspected-private-key-leak-causes-12-5m-loss ; https://www.kucoin.com/news/flash/79thvault-hacker-returns-15-000-bnb-worth-11-1m ; https://www.tokenpost.com/news/technology/28660 ; https://blockfence.io/79thvault-loses-12-5-million-as-privileged-wallet-drains-bnb-chain-liquidity-pool/.

References
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- - https://www.blockchainbreaches.com/en/breaches/79thvault-2026
- - https://www.kucoin.com/news/flash/79thvault-hot-wallet-suspected-private-key-leak-causes-12-5m-loss
- - https://www.kucoin.com/news/flash/79thvault-hacker-returns-15-000-bnb-worth-11-1m
- - https://www.tokenpost.com/news/technology/28660
- - https://blockfence.io/79thvault-loses-12-5-million-as-privileged-wallet-drains-bnb-chain-liquidity-pool/

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