Ключевые слова: background, bank, banking, banknote, black, business, buy, card, cash, chain, close, closeup, concept, concepts, credit, currency, debt, economics, economy, finance, financial, hacker, idea, internet, isolated, key, lock, metal, money, online, padlock, protect, protection, purse, safe, safeguard, safety, sale, savings, secure, security, selling, spend, stealing, steel, symbol, system, wallet, wealth,