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CoinDCX Denies $16 Million Hack Amid Wallet Controversy

CoinDCX Denies $16 Million Hack Amid Wallet Controversy

First seen 23 Oct 2026, 14:36 UTC • •

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ThreatCluster AI
ThreatCluster •October 23, 2026 at 16:43 UTC
  • •CoinDCX denies a new hack despite $16 million flagged in suspicious outflows.
  • •The flagged wallets were linked to a breach from July 2025, according to CoinDCX.
  • •On-chain investigator ZachXBT disputes CoinDCX's claims, citing ongoing activity in flagged wallets.

CoinDCX has denied a fresh hack after $16 million in Tether (USDT) was flagged moving from wallets linked to the exchange. Co-founder Sumit Gupta stated these addresses were compromised in a July 2025 breach and were not currently active. However, on-chain investigator ZachXBT claimed that at least one flagged address was still receiving deposits and interacting with CoinDCX's current hot wallet as recently as May 2026. The exchange acknowledged operational losses due to a failure in its process for moving deposits from deprecated addresses, which it absorbed. CoinDCX assured users that no funds from active wallets were compromised. The incident has raised alarms due to the exchange's previous hack, which resulted in a loss of $44.2 million. The situation remains under scrutiny as the investigation continues.

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Timeline

2025-07-01
CoinDCX suffers a major breach
CoinDCX lost $44.2 million in a hack targeting an internal wallet for liquidity.
Finance.Yahoo
2026-10-21
Suspicious outflow detected
Security researcher Darcy flagged $15.99 million in USDT moving from CoinDCX-linked wallets.
Finance.Yahoo
2026-10-22
CoinDCX responds to allegations
Sumit Gupta denies any new breach, stating flagged wallets were compromised in the 2025 incident.
Coindesk
2026-10-22
CoinDCX issues update on deprecated wallets
CoinDCX advised users against depositing to deprecated addresses, acknowledging operational losses.
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Common questions

Are user funds safe?
CoinDCX claims that all user funds are safe and that no active wallets were compromised.
What caused the $16 million outflow?
The outflow was linked to addresses compromised in a previous hack, with operational failures in handling deposits contributing to the issue.
What should users do now?
Users are advised to verify deposit addresses from official CoinDCX channels and avoid deprecated addresses.