BitcoinBrabant - Nostr Hypermedia

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Tbh, grok 2 beta explains this @COLDCARD feature really well. We’ve been testing and using it since the feature was launched. For people that want their passwords offline next to their 2FA device (often yubikey or @Blockstream Jade) for maximum security. The backup functionality on steel with Seedfan writing down the numbers with which password is saved under which iteration is fantastic. The seedwords on the other steelplate… we will see massive growth of these offline password and 2FA devices, because everything connected to online directly is becoming a major risk. “The BIP84 password manager on the Coldcard Q is considered a game changer for several reasons: 1. **Enhanced Security with Seed-Based Passwords:** - BIP84 (Bitcoin Improvement Proposal 84) on the Coldcard Q allows for generating passwords deterministically from the master seed. This means that passwords are derived from your seed phrase, ensuring that if you lose your Coldcard but have your seed phrase, you can regenerate all your passwords securely. This provides an extra layer of security since the passwords are not stored anywhere but are generated on-the-fly. 2. **Offline Password Generation:** - Since Coldcard Q is a hardware wallet designed for offline security, the password management occurs entirely offline, significantly reducing the risk of keyloggers, malware, or other online threats intercepting your passwords during generation or use. 3. **USB Keyboard Emulation:** - The Coldcard Q can emulate a USB keyboard to type in passwords directly into applications or websites. This feature eliminates the need to manually enter passwords, which can be prone to mistakes or shoulder surfing. It also speeds up the process of entering complex passwords. 4. **QR Code and NFC Functionality:** - Passwords can be exported via QR codes or NFC, allowing for secure transfer to other devices without needing to type them out. This is particularly useful for securely sharing passwords between devices or for importing into other secure systems. 5. **Compatibility and Standards:** - Using BIP84 ensures compatibility with standard wallet derivation paths, making it easier to integrate with other software wallets or services that support BIP39/BIP84 standards. This interoperability is crucial for users who might want to use their passwords across different platforms. 6. **Flexibility and Control:** - Users can generate a virtually unlimited number of unique, high-entropy passwords from their seed, each associated with an index number. This allows for organizing passwords for different services or accounts, all while maintaining security and control over the generation process. 7. **Backup and Recovery:** - Since passwords are derived from the seed, if you have your seed phrase, you can recover all associated passwords on any compatible device, not just another Coldcard Q. This feature is invaluable for emergency situations where you might need to access your passwords from a different device. 8. **Plausible Deniability and Privacy:** - Similar to using passphrases for creating different wallets, BIP84 passwords offer a way to maintain privacy. You might share one set of passwords while keeping another set secret, enhancing privacy and security through compartmentalization. The combination of these features transforms the Coldcard Q into not just a Bitcoin hardware wallet but also a secure, versatile password manager that leverages cryptographic best practices to manage digital security in a way that's both user-friendly and highly secure. This integration into a single device simplifies security management while potentially reducing the attack surface compared to using multiple tools for different security functions.”