Crypto & blockchains
Cryptocurrency is a digital asset recorded on a network. A blockchain is a shared ledger of transactions. Coins belong to their own network; tokens are created on an existing one.
NEW TERRITORY. SAME CURIOSITY.
Crypto, without
the confusion.
Understand the basics.
Keep your keys in your hands.
A little knowledge can help you avoid costly mistakes. Start with what crypto is, then learn how to look after a wallet.
Learn first. Take your time. No investment or wallet connection required.
01 / GET YOUR BEARINGS
A new vocabulary.
A clearer picture.
You don't need to know every acronym.
Start with these four ideas.
Addresses & keys
An address is a destination for receiving assets. A private key authorizes transactions. A wallet manages access to assets recorded on the ledger; the coins aren't stored inside the device.
Networks & fees
Sending or using crypto may cost a network fee. The receiving service must support both the asset and the network. Matching address formats alone don't prove compatibility.
Risk & protections
Prices can fall sharply. Stablecoins can lose their target value. Crypto has different protections from bank deposits or card payments, and confirmed transfers usually can't be reversed.
02 / KNOW WHO HOLDS THE KEYS
A wallet is a tool.
Custody is a responsibility.
Two different questions:
Who controls the keys? How are they used?
CUSTODIAL ACCOUNT
A provider holds the keys.
An exchange or other provider manages access. Account recovery may be available, but you depend on its security, policies, and continued operation.
Protect the account ↗
SELF-CUSTODY WALLET
You control the keys.
You manage access and recovery. Many wallets use a recovery phrase; others use different designs. Learn yours before adding funds.
Protect the backup ↗
Hot wallet
An app used on an online device. Convenient for regular use, with device and phishing risks.
Hardware wallet
A separate device isolates keys. It can still approve a harmful transaction. Read its trusted display before signing.
03 / SMALL CHECKS. BETTER HABITS.
Before you
trust a wallet.
Work through these reminders at your own pace. This is a learning checklist, not a security audit or a guarantee.
0 of 6 reviewed
Your checkmarks stay in this browser. Never enter private wallet information here.
Think your recovery phrase or key was exposed?
Treat affected accounts as compromised. From a clean device, follow official wallet guidance for a new wallet with a fresh recovery setup and moving remaining assets safely. A new password or revoked approval alone won't fix an exposed key.
Don't blindly add network fees to a drained wallet: an automated thief may take them. Preserve evidence, contact your provider through verified channels, and report suspected fraud to the FTC ↗. Recovery isn't guaranteed.
04 / PUT IT INTO PRACTICE
A quick check.
A useful takeaway.
Three everyday scenarios.
No wallet. No real money. Just learning.
Enable JavaScript to try the interactive quiz. You can still read every lesson and review the checklist above.
KEEP YOUR CURIOSITY GOING
Learn from the source.
Reviewed October 16, 2026. Features and recovery methods vary by wallet and network.