#ColdWallet

Coldcard firmware flaw drained $70M in BTC from 1,196 wallets

35d ago

Coldcard firmware flaw drained $70M in BTC from 1,196 wallets

Galaxy mapped the July 30 sweep to 1,196 wallets and 1,082 BTC drained in 41 minutes via a seed-generation bug that collapsed the keyspace to a few billion options.

CoinDesk

ZIL stolen from cold wallet in exchange partner breach

🩸BEARISH

47d ago

ZIL stolen from cold wallet in exchange partner breach

The ZIL amount and the venue are both undisclosed, but the network-wide deposit and withdrawal pause is the more telling beat: even cold storage at a partner exchange is now a live attack surface.

WuBlockchain

M BTC Vulnerable to Quantum Attacks, Coinbase Advisory Warns

🩸BEARISH

84d ago

M BTC Vulnerable to Quantum Attacks, Coinbase Advisory Warns

The headline 7M figure is split between 1.7M legacy Satoshi-era P2PK coins and 5M reused-key BTC, and it's the second bucket — held by active users and major exchange cold wallets — that the report…