infection
WhatsApp can be exploited and infected by a single missed call – no answer needed
WhatsApp may be expiring for some users, but those folks without worries on that front still have something to worry about. Certain versions of the app are vulnerable to an exploit that installs spyware, developed by Israeli outfit NSO Group according to reports. And the nasty part is the penetration method -- WhatsApp can be infected with nothing more than a missed call.