Foundation Path
Stage 6 of 10
On This Page
1. What is Self-Custody?
2. What is a Seed Phrase?
3. How Wallets Actually Work
4. How It Works
5. The Harsh Truth
6. Most Common Ways People Lose Funds
7. How to Store Your Seed Phrase Safely
8. Hot Wallet vs Cold Wallet
9. Best Beginner Setup
10. Critical Safety Rules
11. Real-World Mindset Shift
Key Takeaways
• Self-custody = full control of your funds
• Seed phrase = full access to your wallet
• Losing it = losing everything
• Security is your responsibility
• Most losses come from simple mistakes
Lesson
6.1
Self-Custody & Seed Phrases
What You’ll Learn
• What self-custody means
• What a seed phrase is
• How wallets actually work
• How people lose funds
• How to protect yourself
What is Self-Custody?
Self-custody means you control your crypto—no one else
Simple Comparison:
Type | Who Controls Funds |
Bank | The bank |
Exchange | The platform |
Self-custody wallet | You |
👉 Key idea:
If you control the keys, you control the money
What is a Seed Phrase?
A seed phrase is a list of 12–24 words that gives full access to your wallet
Important:
Your seed phrase = your money
Example:
apple
river
stone
...
👉 Anyone with this phrase can:
Access your wallet
Transfer your funds
Empty everything
How Wallets Actually Work
Reality:
Your crypto is NOT stored in your wallet
👉 It is stored on the blockchain
Your wallet stores:
Private keys
Access credentials
👉 The seed phrase generates:
All your private keys
How It Works (Simple Flow)
👉 Key insight:
Lose your seed phrase = lose access forever
The Harsh Truth
❗ There is NO:
Password reset
Customer support
Recovery option
👉 If you lose it:
Your funds are gone permanently
Most Common Ways People Lose Funds
1. Sharing Seed Phrase
Fake support
Scam websites
2. Storing It Online
Screenshots
Notes apps
Email
3. Phishing Attacks
Fake wallet apps
Fake websites
4. Losing Backup
No physical copy
Forgotten storage
👉 These are the biggest causes of loss
How to Store Your Seed Phrase Safely
✅ DO:
Write it on paper
Store in a secure location
Keep multiple backups
✅ Advanced:
Use metal backup plates
Store in separate locations
❌ NEVER:
Share it with anyone
Store it digitally
Upload it online
Enter it on unknown websites
👉 Rule:
If someone asks for your seed phrase = SCAM
Hot Wallet vs Cold Wallet
🔥 Hot Wallet
Connected to internet
Example: MetaMask
❄️ Cold Wallet
Offline storage
Hardware device
👉 Trade-off:
Type | Convenience | Security |
Hot | High | Lower |
Cold | Lower | Higher |
Best Beginner Setup
Recommended:
Use a hot wallet for daily use
Store majority in cold wallet
👉 Never keep everything in one place
Critical Safety Rules
Rule #1:
Never share your seed phrase
Rule #2:
Always verify websites before connecting wallet
Rule #3:
Use separate wallets (main vs burner)
Rule #4:
Start small when learning
Real-World Mindset Shift
In Traditional Finance:
Mistakes can be reversed
In Crypto:
Mistakes are permanent
👉 This is the cost of freedom
How This Connects to Your Journey
Research Analysts → understand custody risks
Market Analysts → protect capital
DeFi Operators → safely interact with protocols
Next Step
👉 Continue to:
“Crypto Wallets”
Optional Mission
👉 Do this:
Write a fake seed phrase (practice only)
Think about where you would store it safely
Final Thought
In crypto, you are your own bank…and your own security system.
