Why like this apple iPhone 14 pro also haked some one and change my lock and instagram everything loss

I loss my instagram account

See Instagram Help Centre:

Disabled Instagram account -> https://help.instagram.com/366993040048856?cms_id=366993040048856

someone come to my phone lock change

Has someone physical access to your iPhone?

If other people have access to your iPhone or other Apple device, change the device passcode and never share it with others.

Change your Passcode -> Use a passcode with your iPhone, iPad, or iPod touch - Apple Support

Change your Apple ID password -> Change your Apple ID password - Apple Support

• Create a strong password for your Apple ID, It is best if your password consists of eight or more characters and include upper and lowercase letters, and at least one number. You can also add extra characters and punctuation marks to make your password even stronger. 
• Never provide your password, passcode, security questions, verification codes, recovery key or any other account security details to anyone else. Apple will never ask you for this information.

Then see this Apple article: What to do after you change your Apple ID or password

What to do after you change your Apple ID or password - Apple Support

(if you haven't already done this) Two-factor authentication for Apple ID -> Two-factor authentication for Apple ID - Apple Support

To keep your Apple ID account secure, see the following Apple articles: 

If you think your Apple ID has been compromised

If you think your Apple ID has been compromised - Apple Support

See who has access to your device or accounts

See who has access to your iPhone or iPad – Apple Support (UK)

Delete suspicious content from your devices

Delete suspicious content from your devices – Apple Support (UK)

Check your Apple ID device list to see where you're signed in

Check your Apple ID device list to find where you're signed in - Apple Support

• if you see devices that don't belong to you, delete from your account.

Personal Safety User Guide

Personal Safety User Guide – Apple Support (UK)

Manage and use your Apple ID

Manage and use your Apple ID – Apple Support (UK)

Never jailbroken your iPhone.

I'm sorry to hear that you experienced a security issue with your iPhone and Instagram account. It's important to take steps to protect your device and accounts to prevent unauthorized access.

Here are some suggestions to help improve the security of your iPhone:

1. Use a strong passcode or Face ID/Touch ID to lock your iPhone.
2. Enable two-factor authentication on your Apple ID and any other accounts you have linked to your iPhone, such as Instagram. This will require a verification code in addition to your password when logging in from a new device.
3. Avoid sharing your passcode or Apple ID with anyone, even people you trust.
4. Be cautious when clicking on links or downloading attachments from unknown or suspicious sources, as they may contain malware or phishing scams.
5. Regularly update your iPhone's software to ensure you have the latest security patches.

If you suspect that someone has gained unauthorized access to your iPhone or Instagram account, you should immediately change your passwords and enable two-factor authentication. You can also report the issue to Apple or Instagram for additional assistance.

Take a screenshot or screen recording on iPhone - Apple Support