What is a Crypto Wallet

Your Crypto is Not in the Wallet

This surprises most beginners — a crypto wallet does NOT actually store your cryptocurrency.

Your crypto always stays on the blockchain. What a wallet stores is your private key — the password that proves you own that crypto and allows you to spend it.

Lose your private key = lose your crypto forever. No bank to call. No recovery option.

Public Key vs Private Key

Public Key — your address
Like your bank account number. Share this freely so people can send you crypto. Safe to show anyone.

Private Key — your password
Like your PIN number. Never share this with anyone. Ever.
Whoever has your private key controls your crypto completely.

Types of Wallets

Hot Wallet — connected to internet
Software wallets on your phone or computer.
Examples: MetaMask, Trust Wallet, Phantom

✅ Convenient — easy to use daily
✅ Free
❌ Connected to internet — vulnerable to hacking
❌ If your device is hacked — funds at risk

Cold Wallet — offline storage
Hardware devices that store keys offline.
Examples: Ledger, Trezor, SafePal

✅ Maximum security — never connected to internet
✅ Immune to online hacking
❌ Costs money — $50 to $200
❌ Less convenient for frequent trading

Custodial vs Non-Custodial

Custodial wallet
Someone else holds your private keys.
Example: keeping crypto on Binance or Coinbase

The exchange controls your crypto. If exchange gets hacked or goes bankrupt — you could lose everything. FTX exchange collapsed in 2022 — billions lost.

Non-custodial wallet
You hold your own private keys.
Example: MetaMask, Ledger

You are in complete control. No third party risk.

“Not your keys, not your coins” — the most important rule in crypto.

Seed Phrase — Your Master Key

When you create a non-custodial wallet — you receive a seed phrase — 12 or 24 random words.

This seed phrase can recreate your entire wallet on any device.

Rules for seed phrase:

• Write it on paper — never digital
• Store in safe physical location
• Never photograph it
• Never type it online
• Never share with anyone — ever
• Consider storing copy in second secure location

Anyone who has your seed phrase has complete access to all your crypto.

Which Wallet Should You Use?

For beginners — small amounts:
Start with a reputable exchange wallet like Binance or Coinbase. Easy to use, good security for starting out.

For growing portfolio:
Move to a hot wallet like MetaMask or Trust Wallet. You control your keys.

For serious amounts:
Hardware wallet — Ledger or SafePal. Maximum security for significant holdings.

General rule:
Only keep on exchange what you need for active trading. Store the rest in your own wallet.

In the next topic we will learn the basic security rules every crypto user must follow.