Ключевые слова: accident, alarm, alert, attention, beware, careful, caution, communication, computer, concept, cyberspace, danger, data, depression, digital, error, exclamation, fail, failure, fraud, hacker, hand, hazard, information, internet, laptop, maintenance, mark, message, mistake, network, notebook, notice, online, problem, process, risk, safety, screen, security, service, sign, software, spam, symbol, system, technology, virus, warning, web,