本期内容：

WannaRen is the ransomware from hackers that is using .WannaRen file extension to mark encrypted files and then demands at least 0.05 Bitcoin for the alleged decryption tool.
There are two versions of this threat: one is sending the ransom note through a text file, and the other one is using pictures.


ransomware n. 勒索软件
• ransom n. 赎金
• The kidnappers demanded a ransom of ￡50,000 from his family.
绑架者向他的家人索要赎金 5 万英镑。
file extension: 文件扩展名
encrypted files: 加密文件
• encrypted signals: 加密信号
• encrypt vt. 加密
• decrypt vt. 解密
alleged adj. 声称的，被断言的
• his alleged innocence: 他所谓的清白
• the alleged murderer: 据称的谋杀犯



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