Galaxy Research flagged a third wave of sweeps tied to weak Coldcard-generated keys, with the attacker now targeting smaller balances and changing how funds are collected onchain.

The hack, which has drained 1,816 Bitcoin across 5,200 addresses, is devastating because it affected hyper-secure cold storage wallets.

A fourth wave of sweeps targeting Bitcoin addresses generated by Coldcard wallets began early Monday, pushing observed losses toward 1,816 BTC, or about $114 mi ...

The amount of Bitcoin stolen through the Coldcard hardware wallet security incident has climbed to more than 1,367 BTC, worth approximately $88.6 million, ...

A critical vulnerability in certain Coldcard hardware wallets has led to substantial Bitcoin losses, with researchers tracking approximately 1,367 BTC drained ...

BitGo CEO challenged Claude to move 100 Bitcoin from a public wallet. See why the funds remain untouched and what Anthropic disclosed.

The latest Bitcoin hack came when a flaw in Coldcard firmware silently weakened seed entropy for five years, resulting in 1,367 BTC lost ...

DUBAI, United Arab Emirates, July 01, 2026 (GLOBE NEWSWIRE) -- Bitcoin (BTC) saw a sharp decline in millionaire addresses during the first half of 2026, according to findings from Finbold’s H1 2026 ...

A Bitcoin address dormant for nearly 15 years moved $1.9 million in BTC as a New York lawsuit seeks ownership of thousands of inactive holdings. A dormant Bitcoin address transferred 30 BTC worth ...