According to details they send voice messages to what app users to their emails. Once you've opened this e-mail on the device becomes infected with malware after that they access details of users .
After received email costumer ensure that they gets the email from the company , because the , colors, and logo has been used same as whats app.
Internet security companies said they could not open e-mail messages coming from hacker or not try to play.
You have to known that the Whats App company never contact customers directly or through e-mails.The company always announced changes on the official blog and other related sources.