Ключевые слова: alternative, bank, banking, bitcoin, blockchain, blue, choice, copy, cryptocurrency, cryptography, currency, danger, decentralized, decline, decrease, digital, economy, electronic, exchange, exposed, fall, finance, financial, flop, future, idea, image, internet, market, mining, mirror, money, overrated, pay, payment, possibilities, reflected, reflection, risk, security, security problem, size, symbol, tech, technology, trade, trouble, unsafe, virtual, white,