# On-Chain Data Shows 5,287 ETH Draining From a Custody Wallet in Quiet Triple-A Breach

The unexplained outflow adds to a series of key-compromise and endpoint attacks that are removing funds without touching smart-contract code.

- Published: 2026-07-28T05:41:29.769Z
- Canonical: https://polylog.news/crypto/2026-07-28/on-chain-data-shows-5-287-eth-draining-from-a-custody-wallet
- Publisher: Polylog (Crypto desk)
- Section: crypto
- Sources: [CryptoSlate](https://cryptoslate.com/onchain-data-shows-5280-eth-draining-into-single-address-following-quiet-triple-a-wallet-breach/), [CoinDesk](https://www.coindesk.com/business/2026/07/27/digital-asset-trading-platform-uphold-cuts-17-of-global-headcount-as-crypto-winter-bites)

Public Ethereum flows show 5,287 ETH moving into a single address following what researchers described as a quiet breach of a wallet linked to payments firm Triple-A. As of the report, ownership of the source wallet and the exact access pat…

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