Course outline
- 1What a crypto wallet is, and where the coins actually live
- 2Custodial vs non-custodial wallets: whose keys are they
- 3Types of crypto wallet: hot, cold, extensions and hardware
- 4The seed phrase: what it is and why you tell it to nobody
- 5Address, private key and password: how they differ
- 6Where to download a wallet without installing a fake
- 7How to install MetaMask and create a wallet
- 8How to install Rabby: a wallet for many EVM chains
- 9Phantom: a Solana wallet and how to download it
- 10Tonkeeper: how to get a wallet on TON
- 11Hardware wallets: why Ledger and Trezor, and where to buy them
- 12An exchange wallet: convenient, but the keys are not yours
- 13What DeFi is, in plain language
- 14CEX and DEX: where to swap, and what that implies
- 15Gas: why a swap will not send without ETH, SOL or TON
- 16How to buy crypto: fiat, exchange, network, DEX
- 17How to swap tokens on Uniswap (EVM)
- 18How to buy a token on Jupiter (Solana)
- 19How to swap a jetton on STON.fi (TON)
- 20Phishing: where you never type a seed phrase
- 21Why a tracker asks for an address, not a seed phrase
- 22How to check the purchase arrived: network, address, tracker
- 23Wallet security: short rules that actually work
- 24Twitter / X: how to find a project's real account and skip the clone
- 25DefiLlama: where to find a project's real site and Twitter
DefiLlama counts how much money sits in protocols. What we need is not “yield”, it is the card header: Website and Twitter. A link directory that is harder to fake than the first search result.

How to pull the link in a minute
- Open defillama.com from a bookmark (no trap hyphens in the domain).
- Search the name: Uniswap, Jupiter, STON.fi, Aave.
- Open the protocol. Header has Website and Twitter. Copy. Check the letters.
- Bookmark the site from the card. Use that for the swap, not what arrived in a chat.
Example cards from this course:
What DefiLlama does not promise
TVL can be inflated. The list includes wrappers and dead pools. “It's on Llama” ≠ “safe to park a salary”. It is a pointer to an official URL, not an audit and not advice.
A new memecoin with no card — there is no official site in this directory. Then either there is nothing to open, or you are already in the zone where you check a contract by hand, not a ticker in a feed.
The chain
The X from the Llama card has to match how we check Twitter. The site from the card — the address bar before Connect. If the three sources disagree, sign nothing.