Walk the beginner's path —
and learn not to lose money.
An interactive trainer on a real testnet: a live wallet, real transactions and a hint at every step. No money needed — everything runs on a test network.
Free · Keys stay only in your browser · Open-source (MIT)
Totally new to crypto? Start from scratch — Level 0 «Foundations» →
Live wallet trainer
Not pictures — a real wallet on a practice network. Opens right in your browser.
- Real testnet wallet: seed → password onboarding, just like the real thing.
- Real-style interface: dApp requests, signatures, transfers — on a safe network.
- Safe: a burner, no funds of your own, a hint at every step.
What makes us different
Three things the «drawn» tutorials don't have.
Real, not a simulation
A real wallet and a tx hash in the block explorer — unlike MetaMask Learn, where everything is staged. The skill carries over to real crypto.
Security level — our edge
Training attacks on testnet: approve drainer, phishing signature (permit), fake airdrop, address spoofing. You get caught safely — and learn to recognise it. MM Learn doesn't have this.
No risk
It costs nothing, we hold none of your money, the private key lives only in the tab's memory. Open-source (MIT).
What you'll go through
Three steps — from the basics of crypto to spotting attacks.
- What a blockchain is
- Coins and tokens
- Networks and gas
- Wallet and seed — «be your own bank»
- Exchange vs your own wallet
- Volatility and stablecoins
- Wallet and seed phrase
- Faucet — get testnet ETH
- Your first transaction and tx hash
- Gas and failed tx
- ERC-20 tokens
- Wrap / unwrap WETH
- Networks and the bridge
- Connect + approve to a dApp
- Malicious approve / unlimited allowance
- Fake signature (permit)
- Fake airdrop / scam token
- Address spoofing (address poisoning)
- How to read what you're actually signing
Level 2 runs on a controlled wallet emulator: you catch the attack at the moment of confirmation, safely.
Already hold crypto on an exchange? Lesson «Exchange & first withdrawal» — how to move it safely to your own wallet →
Our edge — inside Level 2
Our main edge: you meet real attacks safely, on a testnet — and learn to spot them. «Drawn» tutorials don't have this.
Approve drainer
#01Unlimited allowance lets a contract pull all your tokens, even later. You learn to hit «Reject».
Forged signature (permit)
#02A permit signature with no transaction silently grants token access. You learn to read what you sign.
Fake airdrop / scam token
#03«Free» bait tokens lead to a drainer. You learn not to touch a suspicious airdrop.
Address poisoning
#04Your history is «poisoned» with a look-alike address — easy to copy the wrong one. You learn to verify the full address.
Defense: revoke + verify signatures
After an attack you revoke the approvals you granted and learn to read every signature and transaction before confirming.
Moving to a real wallet — safely
The final step: you connect a real wallet to a site and check for yourself that it has no access to your funds.
- A real connection, not a simulation: you learn to connect a real wallet to a site.
- Through your own empty account: it holds no funds — there is nothing to move.
- The site disconnects itself: a “Revoke” button + an auto timer (~1 hour). You take the access back.
How it works
Three steps — and you're in.
You create a burner wallet
Right in the browser. We show the seed phrase and explain how to store it.
You go through steps on testnet
Sepolia / Base Sepolia — real actions with a hint at every step.
You walk into a training trap
At level 2 you safely meet an attack and learn to defend: revoke, signature check.
For partners and grants
Briefly — for those interested in the security layer.
We're building a reusable security layer: a library of testnet traps (drainer / phishing / permit / poisoning) and a step-by-step breakdown of user actions. Useful for wallets, exchanges and companies with a crypto treasury — training staff against drainers. Focus — EVM security.
Get in touch