iPhone users urged to install the latest security update

Apple found a security flaw that can give hackers complete access to a targeted iPhone.

Every iPhone user is being urged to get the latest version of iOS, which has the patch. Every device that hasn't yet received that update could be liable to the attack according to reports.

Apple has just released a security patch that fixes the vulnerability.

The company says iPhone users should open "Settings" on their device and install the software update called iOS 9-3-5.

Apple said that it had issued the patch as soon as the security problem was discovered.

Five things you need to know about IOS 9-3-5.