Even after being more secure then the other OS's  Apple's software is facing problems due to bugs. A few months ago, a Privacy-Breaking bug was detected by a Google researcher in Apple iPhone's FaceTime feature. After this privacy defect has been removed, a bug attached to the iMessage app has now surfaced and this bug may cause the iPhone to be completely useless. Google Project Zero researcher Natalie Silvanovich was diagnosed in April, but it was revealed last week. 

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This bug associated with iMessage triggers a set of received text off-takers. This has a direct effect on the iOS springboard, which stops the UI from appearing on the screen and stops working on the iPhone. In easy language, one text is enough to spoil your iPhone completely. "This bug doesn't get away with a hard reset and once the phone is unlocked," says Natalie.

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If this bug has been affected on the iPhone, restoring the phone is the only option left. This requires restoring your iPhone after rebooting it in recovery. However, in such a situation all the store data in your phone will be deleted. If you don't have a backup, there's no option to restore data. Researchers took full time before revealing this bug so that Apple could fix it in advance. According to reports, Apple has also fixed it in the may iOS 12.3 update.

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Tell your information that the device is not at risk from this bug and has been fixed. On the other hand, if your iOS device still has the old version installed, it's wise to update it immediately. For this, you'll need to go to Genral in the device's settings and then the software update. If your device is up-to-date but is older than iOS version 12.3, you should enable automatic update settings for the latest updates.