Edward Joseph Snowden is an American whistleblower who copied and leaked highly classified information from the National Security Agency (NSA) in 2013 when he was a Central Intelligence Agency employee and subcontractor.
His disclosures revealed numerous global surveillance programs, many run by the NSA and the Five Eyes Intelligence Alliance with the cooperation of telecommunication companies and European governments, and prompted a cultural discussion about national security and individual privacy.
Russia later granted Snowden the right of asylum with an initial visa for residence for one year, and repeated extensions have permitted him to stay at least until 2020. On September 17, 2019, his memoir Permanent Record was published. Hackers immediately cashed in on it by sending out emails randomly that offers Snowden's memoirs as an attachment. The emails contained a type of malware. When the email recipient clicks on the attachment, there is no book. Instead, the attachment released the malware into the recipient's device and buried itself inside. It will be activated together with another malware later on as and when the hackers decides to take action. In the meantime, it will stay undetected in the recipient's device.