Why it matters
Bitcoin has no recovery mechanism. A single lost key, single compromised device, single unavailable person, or single failed institution can mean permanent, total loss. Unlike traditional finance, there is no appeals process, no customer service, no central authority to reverse errors.
Types of single points of failure
Key-related:
- A single-signature wallet where one lost key means total loss
- A seed phrase backup in only one location
- A passphrase stored only in memory
- A multisig setup where one key is required and cannot be recovered
Device-related:
- A single hardware wallet with no backup
- Key material only on one computer
- No geographic distribution of signing devices
Person-related:
- One person who knows the full setup
- One person who can authorize transactions
- Succession plans that depend on a specific individual
Institution-related:
- Custody with a single provider with no exit strategy
- Legal documentation held by one attorney
- Key backup in one bank's safe deposit system
How to eliminate them
Redundancy: Maintain backups of everything critical. Seed phrases in multiple locations. Multiple signing devices. Multiple people with knowledge.
Distribution: Geographic and institutional distribution ensures localized failures do not cascade. Keys in different physical locations. Backups with different providers.
Multi-signature: Require multiple keys for transactions. No single key loss or theft can compromise funds.
Documentation: Written procedures that allow someone else to reconstruct your setup. Tested by having another person walk through them.
