Coldcard exploit sparks $15B Bitcoin reshuffle as users move to new wallets
AI Market Summary
Exploitation of a Coldcard firmware vulnerability and Coinkite's guidance to treat affected seed phrases as compromised has triggered a security-driven reshuffling of BTC custody. Onchain flows show ~233,000 BTC (~$15B) moved from long-term holder wallets and ~22,000 BTC sent to exchanges, suggesting elevated liquidity and near-term sell-side optionality. The event may widen risk premiums around self-custody and hardware wallet supply chains.
Impact level
● High
Affected assets
BTC/USDT-0.06%
AI Insight · BTC/USDTAI Insight
▼ Bearish
Trade now
⚠️ AI-generated insights are based on news content and are provided for informational purposes only. They do not constitute investment advice or represent the views of BingX. Investing involves risk. Please trade responsibly.
A recently exploited firmware flaw in the Coldcard hardware wallet led to the theft of about 2,100 BTC, with losses estimated near $1.3 billion, according to Odaily Planet Daily.
On-chain data indicates that in the days surrounding the incident, wallets tied to long-term holders moved roughly 233,000 BTC—about $15 billion—out of their addresses. Casa CEO Nick Neuman said part of the flow appears to be Coldcard users shifting funds into multisig setups, adding that Ledger and Trezor users made similar moves after the news broke.
Over the same window, around 22,000 BTC was sent to exchanges.
Coinkite urged anyone who generated mnemonic phrases using firmware versions 4.0.1 through 4.1.9 to assume their wallets may be compromised and to migrate immediately to new mnemonic phrases. The affected versions span March 2021 through July 2026. (Decrypt)
