Coldcard Adds New Security Measures After $130 Million Bitcoin Exploit
In brief Coinkite released new Coldcard firmware after a seed-generation flaw exposed users to more than $100 million in Bitcoin thefts. Coldcard now requires users to add randomness through key presses, dice rolls, or coin flips when generating new seeds.
Why It Matters
This story touches on security, coldcard, adds — topics readers are actively tracking. Review and add editorial context before publishing.
Key Facts
- Fact 1: In brief Coinkite released new Coldcard firmware after a seed-generation flaw exposed users to more than $100 million in Bitcoin thefts.
- Fact 2: Coldcard maker Coinkite has released a security overhaul for its Bitcoin hardware wallets after a seed-generation flaw allowed attackers to steal more than $100 million in Bitcoin.
- Fact 3: In a blog post on Thursday, Coinkite urged Coldcard Mk4, Mk5, and Q users to upgrade to firmware 5.6.1 or 1.5.1Q.
- Fact 4: “Their work put this firmware under intense, sustained scrutiny and made this release stronger.” In July, attackers began draining Bitcoin from air-gapped Coldcard wallets after exploiting a firmware flaw dating to 2021 that generated some wallet seeds with too little randomness, making their private keys easier to guess.
In brief Coinkite released new Coldcard firmware after a seed-generation flaw exposed users to more than $100 million in Bitcoin thefts. Coldcard now requires users to add randomness through key presses, dice rolls, or coin flips when generating new seeds.
A three-week review also uncovered issues involving transaction signing, USB connections, backups, and other wallet functions. Coldcard maker Coinkite has released a security overhaul for its Bitcoin hardware wallets after a seed-generation flaw allowed attackers to steal more than $100 million in Bitcoin. In a blog post on Thursday, Coinkite urged Coldcard Mk4, Mk5, and Q users to upgrade to firmware 5.6.1 or 1.5.1Q.
(Original synthesis pending human/AI review — generated by the stub provider by selecting real sentences from the source material, not by writing new analysis or commentary.)
Original source: Decrypt
Related Stories
U.S. state banking associations plan to launch their own nationwide blockchain network
Cosmos Labs Urges EVM Chains To Halt As Shared Bug Drains Three Networks
Elon Musk’s SpaceX Plans $100 Billion Louisiana Spaceport
