Jailbreak

Jailbreaking removes Apple's restrictions on an iPhone so it can run unapproved software, but it also removes protections and invites malware.

Jailbreak: Jailbreaking is the iPhone version of rooting. It breaks Apple's built-in limits so the phone can install apps from outside the App Store and change deep settings. In doing so it removes safety walls, and a jailbroken phone is easier for malware or a thief to abuse.

Some people jailbreak to customise their iPhone or to use pirated apps. Jailbreak tools sometimes carry malware, and they leave the phone with weaker updates and weaker protection of passwords and payment data. Many banking and payment apps detect it and refuse to open. It is still a good term to know, because people sell cheap iPhones that have been altered, and iPhone users in your family may ask.

This entry matters mainly to iPhone owners and to anyone buying a used iPhone. If you buy a second-hand iPhone, make sure it is not jailbroken and is fully signed out of the previous owner's Apple account. Keep iOS updated, and use only the App Store for apps. Treat a very cheap iPhone with unclear history with extra care. Ask for proof of purchase.

Tips

• Do not jailbreak a phone that you use for UPI or banking.
• Update iOS as soon as updates arrive, since each update closes known holes.
• When buying a used iPhone, ask for a factory reset in front of you and check Apple ID sign-out.

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