The Grand Rapids Bitcoin Meetup gathers for a private, self-guided demonstration session to educate anyone needing technical guidance on air-gapped key migration.
A critical vulnerability has been disclosed regarding seed phrases generated directly on Coldcard devices. If you generated your seed phrase on-device, your funds should be migrated to a newly generated setup. Setups utilizing dice rolls or external generation are unaffected.
Privacy & Opsec Assurances:
- Completely anonymous: No check-in, names, or sign-ups.
- Zero disclosure: You do not need to show your screen, seeds, or balances to anyone.
- Flexible: You can bring hardware to work through the process locally, or simply observe the step-by-step walk-through and perform the migration at home.
Tuesday, August 4, 2026
🕔 Time: 6:00 PM – 7:30 PM EDT
📍 The Factory
77 Monroe Center St NW Suite 600 · Grand Rapids, MI
✨ The Grand Rapids Bitcoin Meetup is for anyone with an interest in Bitcoin, regardless of if you own any. We are focused on education first. This is a “Bitcoin-only” group. We are focused on Bitcoin education and do not discuss other “cryptos.”