A new software update for their iOS operating system was launched this week that you should be downloading right now.

Called iOS 10.3.3, it is particularly important because it will protect your phone from one particularly bad vulnerability that would allow hackers to gain complete control over your phone and all they need is a WiFi connection.

Apple has dubbed it CVE-2017-9417 and calmly described it with the following statement in their security document:

Impact: An attacker within range may be able to execute arbitrary code on the Wi-Fi chip

Description: A memory corruption issue was addressed with improved memory handling.

Nitay Artenstein from Exodus Intelligence expanded upon that with a report that claimed that he was able to exploit the vulnerability to “run code in the main application processor”, allowing him to gain complete control over the device.

It is an issue with the Broadcom BCM4354, 4358, and 4359 chips. wifi chips, which have been used in every iPhone from the iPhone 4 to the iPhone 7.

You can also find it in every iPad after the 4th generation device, and the iPod Touch 6th gen model. If you have any of these devices, you should update to the latest version today, which you can do by heading over to Settings > General > Software Update and clicking ‘Download and Install’.

Sadly, we don’t know much about how it works just yet, however, Artenstein has said that he will be detailing more about the vulnerability during his panel at the Black Hat conference next week.

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