本集重點教學：

ransomware 勒索軟體

contend with sth. = deal with or overcome problems or difficulties 須面對、處理不愉快的事，後面通常接困難棘手的狀況

disclose 揭發，公開

cyber 與網路相關的

manage to 設法 = try hard to do something difficult

encrypt 加密

decrypt 解鎖，破解

demand 要求

bitcoin 比特幣

facilitate 促進