WhatsApp need to make sure they’re running the latest version of the app, as a new update fixes a major security bug that could let hackers slip malicious code onto devices through seemingly innocent .MP4 video files.
Threatpost has a detailed explanation of the bug, but the gist is that hackers can corrupt a device’s memory by manipulating the metadata (information like the title, rights holders, etc.) of an MP4 video file. The attack is only possible when the malicious file is played in WhatsApp, which can then allow the attacker to take control of certain parts of the device and install or execute code remotely.
