anti-virus app

Jailbreaking refers to a hacking the device to make it do things it originally could not do.

Hacking in this way exposes the device to malware and other issues that normally would be able to get onto it.

Non exist. And none are needed.

Due to the design of the operating system, there are no known viruses that affect non-jailbroken iOS devices such as iPads or iPhones.

What other post said! No need anti-virus app for iOS devices, as long not jailbroken.