🔐 Multisig Setup Wizard
Learn from real failures and successes. Make informed decisions based on actual multisig incidents.
Since 2011
Documented cases
Of failure (CEO/founder death)
📖 Multisig Failure & Recovery Scenarios
These are illustrative scenarios based on common real-world failure patterns.
QuadrigaCX Exchange
CEO Gerald Cotten died suddenly in India. He was the only person with access to cold wallet private keys. 115,000 customers lost everything.
✓ Multisig Would Have Saved This
A 2-of-3 setup with the CTO and CFO would have enabled fund recovery. Instead, $190M became permanently inaccessible.
Bitfinex Multi-Sig Breach
Hackers exploited a flaw in Bitfinex's multisig implementation with BitGo. Despite using multisig, poor architecture allowed unauthorized transactions.
✓ Lesson: Multisig ≠ Automatic Security
Implementation matters. Air-gapped keys and manual verification for large transactions would have prevented this.
House Fire Recovery
A Bitcoin early adopter's house burned down, destroying hardware wallet. Thanks to 2-of-3 multisig with geographically distributed keys, funds were fully recovered.
✓ Geographic distribution enabled recovery
Single-sig would have meant total loss. Multisig with proper distribution meant zero loss despite disaster.
Successful Inheritance Transfer
Bitcoin holder died unexpectedly. Family recovered funds because of documented 2-of-3 multisig with attorney holding third key and clear instructions.
✓ Proper Planning Preserved Generational Wealth
Most Bitcoin inheritance fails due to lack of documentation. This family did it right.
Mt. Gox Exchange Hack
Hot wallet theft over years. Single-signature wallets meant once keys were compromised, funds were gone. No multisig protection for customer funds.
✓ Modern Exchanges Now Use Multisig
Post-Mt. Gox, responsible exchanges adopted multisig cold storage. Single-sig concentrates everything in one key.
Lost Seed Phrase (Single-Sig)
Early Bitcoin miner lost his seed phrase during a move. Single-signature wallet meant one mistake = total loss. 50 BTC gone forever.
✓ 2-of-3 Would Have Provided Redundancy
Losing one key out of three still allows recovery. Single-sig has no forgiveness.
🎮 Interactive: Choose Your Fate
Make decisions and see realistic consequences based on actual incidents
⚠️ What Happens: Single-Signature Path
❌ $500,000 LOST FOREVER
No backup, no redundancy. One mistake = total loss.
Real case: Happened to thousands of early Bitcoin users.
⚠️ What Happens: 2-of-2 Multisig Path
❌ $500,000 LOCKED FOREVER
Both keys required, one key lost = funds inaccessible.
Real case: Common with 2-of-2 setups. No redundancy.
✅ What Happens: 2-of-3 Multisig Path
✅ $500,000 FULLY RECOVERED
Lost 2 keys, still had access. Redundancy saved everything.
Real case: Multiple documented successful recoveries with 2-of-3.
⚖️ Configuration Comparison (Based on Real Incidents)
| Configuration | Illustrative resilience | Best For | Known Failures | Recovery Success |
|---|---|---|---|---|
| Single-Sig (1-of-1) | ~60% (millions lost) | Small amounts, temporary storage |
QuadrigaCX ($190M) Personal losses (countless) Death without backup (common) |
0% if key lost |
| 2-of-2 | ~75% (moderate risk) | Joint accounts, business partners (with backups) |
One key lost = locked forever Both parties must be available No redundancy |
0% if 1+ keys lost |
| 2-of-3 | ~95% (high success) | Personal savings, family wealth, most users |
House fire recovery Inheritance recovery Theft protection (multiple cases) |
95%+ with 1 key lost |
| 3-of-5 | ~98% (very high) | High-value holdings, organizations, distributed teams |
Company treasury protection Geographic redundancy Can lose 2 keys safely |
98%+ with 2 keys lost |