How can faulty version of an iOS app (such as WhatsApp) expose the whole device to crashes or take-over

There was a lot of recent, prominent news about a security vulnerability in WhatsApp that affects also iOS versions of the app. The volnerability has been described as carrying the risk of an attacker crashing the device (e.g… Continue reading How can faulty version of an iOS app (such as WhatsApp) expose the whole device to crashes or take-over