Washington Post – “Global messaging app WhatsApp, which boasts over 1 billion users, was targeted by hackers last month in a breach that saw mobile devices attacked through the voice-calling functionality of the app. The security flaw potentially gave hackers access to private messages, location data and other personal user information. While WhatsApp hasn’t specifically stated who or how many users were targeted, the platform urged users to update to the latest version of the app to protect their data and devices from hackers. Unsure how to update your WhatsApp or how to check if you’re already running the newest version? Here’s everything you need to know…”

See also TechCrunch – WhatsApp exploit let attackers install government-grade spyware on phones “…The vulnerability (documented here) was discovered by the Facebook-owned WhatsApp in early May, the company confirmed to TechCrunch. It apparently leveraged a bug in the audio call feature of the app to allow the caller to allow the installation of spyware on the device being called, whether the call was answered or not…”