"Advanced cyber actor" took advantage of vulnerability allowing malware to penetrate phones using the app's voice calling function


In May 2019, the company warned its users that a vulnerability in its service could have left its 1.5 billion users exposed to hackers. Attackers placed malicious code on users' devices simply by making a call. The malware spread to 1,400 mobile phones. It fixed the vulnerability and requested all users install an update to their app to be safe.

In October 2019 it was announced that their parent company is taking the spyware vendor to court over allegations that the firm helped to deploy malware that was used to target their users.

Free consultation

Want to discuss this case? We're offering a FREE 20 minute phone consultation with our analysts to discuss this case and the implications it has for your organisation. Just select the time and date that works for you:


  • WhatsApp Messenger

We've done the analysis so you can make the decisions

When purchasing a minimum of 5 Case Studies
$699.99 if buying less than 5.

  • Detailed cause & effect analysis
  • Lessons learnt catalogued
  • Preventive controls extracted
Add to Cart
Heads up! Want to try before you buy? You can download our FREE demo case study here