·6 min read
Hidden fees of keeping crypto on exchanges: the full cost
Hidden fees of keeping crypto on exchanges: trading fees, spreads, crypto and fiat withdrawals, stablecoin conversion and a worked example with R$ 50,000.
Read article →- ·6 min read
Hot wallet vs cold wallet: which to use for each amount
Hot wallet vs cold wallet: what each one is, three scenarios by amount and usage, what the 2025 Bybit hack teaches about exposure, and how people combine both.
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Ledger vs Trezor: which hardware wallet to choose in 2026
Ledger vs Trezor compared: current models, prices in Brazil, secure element vs open source, passphrase, Shamir backup, Ledger Recover and where to buy safely.
Read article → - ·7 min read
Lost access to your crypto wallet: what to do now
Lost access to your crypto wallet? What is recoverable (password, incomplete seed, passphrase, damaged device, inheritance), the first 24 hours and the scams.
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Self-custody vs exchange: where to keep crypto in 2026
Self-custody vs exchange compared by counterparty risk, fees, Brazilian tax reporting and inheritance, with the FTX and Mt. Gox cases and a rule by amount.
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What is a crypto vault and how to build your own
What a crypto vault is, how cold storage, multisig, time-locked, exchange and DeFi vaults actually work, when one makes sense and how to build your own safely.
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What is a seed phrase and how to store 12 or 24 words
What is a seed phrase: the 12 or 24 BIP39 words that generate every key in a crypto wallet, and paper, metal, password manager, photo and memory backups rated.
Read article → - ·5 min read
Crypto custody: self-custody vs. third-party custody
Understand what crypto-asset custody is, the differences between self-custody and third-party custody, and how to protect your crypto wealth securely.
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