Ключевые слова: bit, bitcoin, blockchain, btc, business, button, buy, chain, coin, cold, concept, crypto, cryptocurrency, cryptography, currency, decentralized, editorial, enter, handling, hardware, hold, holder, illustrative, key, keyboard, keypad, laptop, ledger, letters, longterm, money, padlock, password, payment, privacy, private, protection, safe, safety, secure, security, storage, system, technology, transaction, trezor, wallet, word, written,