Apple opened its bug-bounty program to the public in December, while boosting its top payout to $1 million. The tech giant is looking for full working exploits with any vulnerability submission. In May, WhatsApp is warned users about a zero-day vulnerability found in its messaging platform was exploited by attackers who were able to inject spyware onto victims phones in targeted campaigns. Facebook sued the Israeli company NSO Group, alleging that it developed the surveillance code itself and used vulnerable WhatsApp servers to send malware to WhatsApp users.
Source: https://threatpost.com/top-mobile-security-stories-2019/151420/