Binance investigates suspected hack as Tether and Circle freeze linked stablecoins

cybersecurityongoing_investigation2026-10-29 22:33:58 UTCimp 0.86CRCL +0.10

Binance said its teams were investigating reports of a potential security issue after unusual transfers from a Binance-linked Ethereum wallet. Binance co-founder Changpeng Zhao said the exchange appeared to have been hacked and expected all user funds to be fully covered. Reports said Tether blacklisted linked USDT and Circle froze linked USDC, with one report putting the combined amount at roughly $1.8 billion; the supplied reports differ on the issuer-specific amounts, and Binance had not confirmed that the exchange itself was breached.

Occurred 2026-10-29 21:17:18 UTCSurprise 0.84Confidence 0.87

Rationale

Direct reports show Binance acknowledged a potential security issue and was actively investigating; Changpeng Zhao separately said it appeared to have been hacked and expected user funds to be fully covered. The linked stablecoin freezes are material and forward-looking for exchange operations, recovery prospects, and issuer controls, but the hack and any loss remain unconfirmed, and the supplied reports conflict on the issuer-specific freeze amounts, so the description attributes the claims and confidence is below 0.9. The 21:17:18Z timestamp is the earliest supplied report of Binance's investigation rather than the unknown time of any underlying unauthorized transfer. The prior event match is retained, and only CRCL is approved because Circle's freeze is directly evidenced while other proposed stakeholders are indirect or speculative.

EventsBinance Wallet Outflows and Suspected Hack

Evidence

clash_report2026-10-29 21:31:26 UTCOpen source

Changpeng Zhao says the exchange appears to have been hacked, with Tether and Circle freezing approximately $1.8 billion.

kobeissi_letter2026-10-29 21:22:51 UTCOpen source

BREAKING: Binance founder Changpeng Zhao (CZ) says it appears as though Binance has been hacked.

CZ also says he expects all user funds to be "fully covered."

walter_bloomberg2026-10-29 21:17:18 UTCOpen source

BINANCE: OUR TEAMS ARE AWARE OF REPORTS OF A POTENTIAL SECURITY ISSUE AND ARE ACTIVELY INVESTIGATING

financial_juice2026-10-29 21:21:40 UTCOpen source

Circle CEO: 800 million USDC linked to incident frozen as support for investigation continues|FJ

financial_juice2026-10-29 21:26:56 UTCOpen source

Tether CEO: Tether froze over $1.567 billion USDT linked to possible Binance exchange hack|FJ

kobeissi_letter2026-10-29 21:58:25 UTCOpen source

BREAKING: Binance has been hacked with wallets across the Ethereum, Bitcoin, and TRON networks seeing outflows of -$5.7 billion.

If confirmed, this would mark the biggest hack in crypto history.

Binance investigating hack as suspicious outflows reach up to $5.8 billion

the block2026-10-29 21:49:16 UTCOpen source

Tether and Circle froze $1.79 billion in USDT and USDC after billions moved out of Binance hot wallets. Binance says it is investigating.

Tether, Circle freeze $2.38 billion after Binance reports security incident

reuters2026-10-29 22:25:21 UTCOpen source

Circle NYSE:CRCL and Tether on Thursday froze over $2.38 billion in stablecoin currency after Binance said it was actively investigating a potential security issue.

Ripple had frozen roughly $200 million, Binance co-founder Yi He said on X.

Tether, which issues the world's largest stablecoin, said it froze nearly $1.57 billion related to the hack, with Circle freezing over $800 million.