What does 'open source' mean?
What does 'open source' mean?
Find out why open source is one of the most important attributes of Bitcoin Read more
What does 'open source' mean?
Bitcoin on exchanges: convenient, but not a great idea!
Bitcoin on exchanges: convenient, but not a great idea!
Crypto exchanges are convenient and promise a lot. Maybe too much? Find out why they are not really an alternative to your own wallet. Read more
How to keep your Bitcoin backup safe: 4 proven methods you should know
How to keep your Bitcoin backup safe: 4 proven methods you should know
Improve the security of your wallet backup with these best practices Read more
5 questions about Bitcoin hardware wallet security you’ve always wanted to ask
5 questions about Bitcoin hardware wallet security you’ve always wanted to ask
Thinking of improving your Bitcoin security with a hardware wallet? Start here, we've got you covered. Read more
Anti-klepto explained: how the BitBox02 protects you against leaking private keys
Anti-klepto explained: how the BitBox02 protects you against leaking private keys
The BitBox02 is the first hardware wallet that offers protection against the nonce covert channel attack, by supporting a protocol called anti-klepto. Read more
Remote multisig theft attack on the Coldcard hardware wallet
Remote multisig theft attack on the Coldcard hardware wallet
tl;dr: When registering a multisig wallet in a Coldcard, the Coldcard did not verify that it is actually part of the multisig wallet. This allowed a malicious computer wallet Read more
Coldcard isolation bypass
Coldcard isolation bypass
Responsible disclosure of a Coldcard vulnerability that allows an attacker to spend your bitcoins when you think you are signing a testnet transaction. Read more
How nearly all personal hardware wallet multisig setups are insecure
How nearly all personal hardware wallet multisig setups are insecure
If you use hardware wallets in a Bitcoin multisig setup, using a single computer to handle them, you are likely to be exposed to remote theft or ransom attacks. Read more
BitBox02 multisignature wallet
BitBox02 multisignature wallet
BitBox02 ❤️ Electrum: part 3 Read more